The goal of this experiment was to answer the
question "What is the effect of a gas' temperature
on its volume?" You formulated the hypothesis
below
To test this hypothesis, you changed the
of the gas between 0 and 100°C
(273 and 373 K) and calculated the resulting
of the gas
DONE
Hypothesis: If a fixed amount of gas is
heated, then the volume will increase because
the heat will cause the molecules of gas to
move faster and further apart.

Answers

Answer 1

Answer:

hypothesis is correct, if temp increases particle velocity increases, increasing force and number of collisions therefore, volume increases

Explanation:

Answer 2

Final answer:

The experiment tests Charles's law, which states that the volume of a gas increases with temperature when pressure is constant. This was demonstrated by early scientists like Jacques Charles and is due to the increase in kinetic energy of gas molecules at higher temperatures.

Explanation:

The experiment in question aims to understand the effect of a gas's temperature on its volume, which is a principle demonstrated by Charles's law. Via the controlled experiments of heating a fixed amount of gas and measuring its volume at various temperatures while maintaining constant pressure, we see that the volume indeed increases as temperature rises. This concept was first systematically studied by Jacques Charles and further refined by Joseph-Louis Gay-Lussac, who demonstrated that a plot of volume (V) against temperature (T) at constant pressure is a straight line, confirming that these two variables are directly related.

Charles's initial findings indicated that at a constant pressure, the volume of a gas increases with temperature. This is because, as explained by the kinetic molecular theory, increasing temperature results in gas molecules moving with greater kinetic energy, leading to more frequent and forceful collisions with the container walls, thus expanding the volume unless the pressure is increased. These principles underpin our understanding of gas properties and behaviors and are illustrated in historical graphs and datasets, such as methane gas volume-temperature data graphed in scientific studies.


Related Questions

How many electrons are represented by a dash (-) in a lewis dot structure compound

Answers

Answer:

nstead of using two dots to indicate the two electrons that comprise the covalent bond, a line is substituted for the two dots that represent the two electrons. Below is shown the Lewis structure for water. Two hydrogens (H) are separately covalently bonded to the central oxygen (O) atom.

Explanation:

The total number of electrons that are represented by a dash (-) in a Lewis dot structure compound is 2(Two).

What is the Lewis dot structure compound?Lewis structures, also known as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures, are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.A single dot represents one electron. A dash typically represents 2 electrons, and typically represents a covalent bond, i.e. shared electron density between two positively charged atomic nuclei. Most of the time we represent the valence electrons only.

So, the total number of electrons that are represented by a dash (-) in a Lewis dot structure compound is 2(Two).

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Select all that apply to temperature and the kelvin scale.

-Scientists have been able to cool substance to absolute zero.
-0 K is equal to -273 degrees Celsius.
-Gas can have a volume of 0.
-The term “degree” is not used with the Kelvin scale.
-Cryogenics is the study of very low temperatures and their effects.

Answers

Number one, two, theee and five

Answer: Option (2), (4) and (5)

Explanation:

Absolute zero refers to the temperature from which there occurs no cooling. Scientists have not been able to cool any substance upto its absolute zero temperature. A temperature close to the absolute zero temperature is attained but it never exactly reaches the absolute temperature.

For the conversion from celsius scale to kelvin or from kelvin to celsius scale, it is universally taken to be 0 K= -273°C.

Gas can never be zero volume because gas is a matter and certain composition and thus has its own volume.

In Kelvin scale, k is used whereas in celsius scale, degree (°) is used.

Cryosphere refers to the study of the materials and their characteristics at a relatively very low temperature.

Thus, the correct answers are option (2), (4) and (5).

How many grams of Na2O are produced when 70.7 g of Na reacts?
4Na(s)+O2(g)→2Na2O(s)

Answers

Answer:

95.3 grams.

Explanation:

Relative atomic mass data from a modern periodic table:

Na: 22.990;O: 15.999.

How many moles of Na are consumed?

[tex]M(\mathrm{Na}) = \rm 22.990\; g\cdot mol^{-1}[/tex].

[tex]\displaystyle n(\mathrm{Na}) = \frac{m(\mathrm{Na})}{M(\mathrm{Na})} = \rm \frac{70.7\; g}{22.990\;g\cdot mol^{-1}}=3.07525\;mol[/tex].

How many moles of [tex]\mathrm{Na_2 O}[/tex] formula units will be produced?

Consider the ratio between the coefficient of [tex]\mathrm{Na_2 O}[/tex] and that of [tex]\mathrm{Na}[/tex] in the equation:

[tex]\displaystyle \frac{n(\mathrm{Na_2 O})}{n(\mathrm{Na})} = \frac{2}{4} = \frac{1}{2}[/tex].

As a result,

[tex]\displaystyle n(\mathrm{Na_2 O}) = n(\mathrm{Na}) \cdot \frac{n(\mathrm{Na_2 O})}{n(\mathrm{Na})} = \rm \frac{1}{2}\times 3.07525\;mol = 1.53763\; mol[/tex].

What will be the mass of that many [tex]\mathrm{Na_2 O}[/tex]?

Formula mass of [tex]\mathrm{Na_2 O}[/tex]:

[tex]M(\mathrm{Na_2 O}) = \rm 2\times 22.990 + 15.999 = 61.979\; g\cdot mol^{-1}[/tex].

[tex]m(\mathrm{Na_2 O}) = n(\mathrm{Na_2 O})\cdot M(\mathrm{Na_2 O}) = \rm 1.53763\; mol\times 61.979\; g\cdot mol^{-1} \approx 95.3\; g[/tex].

Answer: 95,3 g. would be produced, if the mass of Na = 70,7 g.

How many moles of H are in 0.9 mol C21H23NO5? Enter your answer to 1 decimal place.

Answers

Answer:

Explanation:

I mol of C21H23NO5 Contains 23 moles of H

0.9 mol of C21H23NO5 contains 23*0.9 mols of H

mols of H = 20.7

How are magnets made? What raw materials are required?

Answers

Hello There!

Image Attached Below

Answer:

The most common magnetic metals are iron, nickel, and cobalt. Alloys that contain one or more of those elements are usually ferromagnets, meaning that the magnetic orientations of nearby atoms line up with each other on their own to make little magnetic domains

What can form as a result of a chemical reaction?
What can form as a result of a chemical reaction?
compounds
isotopes
alpha particles
beta particles

Answers

Answer:

Compounds

Explanation:

Chemical reactions involving more than one element mostly give rise to compounds when transfer of electrons occurs.

The compounds are as a result of the combination of the individual elements and radicals.

Isotopes occur naturally while alpha (α) and beta (β) particles are as a result of nuclear reactions.

Answer: compounds

Explanation:

A physical reaction is defined as the reaction in which a change in shape, size takes place. No new substance gets formed in these reactions.

A chemical reaction is defined as the reaction in which a change in chemical composition takes place. A new substance or compound is formed in these reactions.

[tex]2H_2+O_2\rightarrow 2H_2O[/tex]

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass. It can be decomposed into simpler constituents using chemical reactions. Example: water [tex]H_2O[/tex]

Isotopes, alpha and beta particles are formed in nuclear reactions.

(WILL GIVE BRAINLIEST ANSWER) A runner burns 10 kilocalories per minute. If the runner completes a race in 1 hour and ten minutes, how many kilocalories does he burn during the entire race? How many grams of pasta would provide him with this much energy? (1 gram of pasta gives 4.06 kilocalories of energy)

Answers

60 minutes in an hour so. 60 times 10=600+10 more minutes

He burns 610 kilocalories

Then 610 / 4.06

150.25

Answer:

700 kilo calories was burnt during the entire race.

172.41 grams of pasta would provide him with 700 kcal energy.

Explanation:

Rate of burning calories = R = 10 kcal/min

Number of calories burnt in 1 hour and 10 minutes = x

Duration of race = t =  1 hour + 10 min

1 hour = 60 minutes

t = 60 min + 10 min = 70 min

[tex]x=R\times t=10 kcal/min\times 70 min=700 kcal[/tex]

700 kilo calories was burnt during the entire race.

Number of calories in 1 gram of pasta = 4.06 kcal/g

Amount of pasta with 700 kcal = m

[tex]m\times 4.06 kcal/g=700 kcal [/tex]

[tex]m=\frac{700 kcal}{4.06 kcal/g}=172.41 g[/tex]

172.41 grams of pasta would provide him with 700 kcal energy.

What is the total mass of copper consumed when 16.0 moles of water are produced?


3Cu + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H2O

Answers

Answer:

762.55 g.

Explanation:

For the balanced reaction:

3Cu + 8HNO₃ → 3Cu(NO₃)₂ + 2NO + 4H₂O.

It is clear that 3 mol of Cu reacts with 8 mol of HNO₃ to produce 3 mol of Cu(NO₃)₂, 2 mol of NO, and 4 mol of H₂O.

We need to calculate the no. of moles of copper consumed when 16.0 moles of water are produced:

Using cross multiplication:

3 mol of Cu produce → 4 mol of H₂O, from stichiometry.

??? mol of Cu produce → 16 mol of H₂O.

∴ no. of moles of Cu needed = (3 mol)(16 mol)/(4 mol) = 12 mol.

Now, we can get the mass of Cu needed:

∴ mass of Cu = (no. of moles)(atomic mass of Cu) = (12 mol)(63.546 g/mol) = 762.55 g.

Calculate the number of molecules present in 2.25 mol H2SO4. 2.25 x 1023 molecules 1.35 x 1024 molecules 3.53 x 1023 molecules

Answers

Answer:1.35 x 10^24

Explanation:

No. of molecules= mole x avogadro's constant

2.25 x 6.02 x 10^23

=1.35 x 10^23

Answer: The number of molecules in given amount of sulfuric acid is [tex]1.35\times 10^{24}[/tex]

Explanation:

According to the mole concept:

1 mole of a compound contains [tex]6.022\times 10^{23}[/tex] number of molecules.

We are given:

Moles of sulfuric acid = 2.25 mole

So, the number of molecules that will be present in 2.25 moles of sulfuric acid will be [tex]2.25\times 6.022\times 10^{23}=1.35\times 10^{24}[/tex] number of atoms.

Hence, the number of molecules in given amount of sulfuric acid is [tex]1.35\times 10^{24}[/tex]

If you have 35.0g of Na and 100.0g of Cl2, what is the maximum amount of NaCl that you can produce?


2Na + Cl2 → 2NaCl

57.7 g

165 g

75.8g

89.0 g
HELPP PLEASE

Answers

Answer:

89.0 g.

Explanation:

The balanced chemical equation between CuO and HCl is:

2Na + Cl₂ → 2NaCl,

It is clear that 2 mol of Na react with 1 mol of Cl₂ to produce 2 mol of NaCl.

Firstly, we need to calculate the no. of moles of (35.0 g of Na) and (100.0 g Cl₂):

no. of moles of Na = mass/molar mass = (35.0 g)/(22.989 g/mol) = 1.522 mol.

no. of moles of Cl₂ = mass/molar mass = (100.0 g)/(70.906 g/mol) = 1.41 mol.

From the balanced equation: Na reacts with Cl₂ with (2: 1) molar ratio.

∴ 1.522 mol of Na "limiting reactant" reacts completely with 0.761 mol of Cl₂ "excess reactant".

To calculate the mass of the produced salt (CuCl₂):

2 mol of Na produces → 2 mol of NaCl, from stichiometry.

∴ 1.522 mol of Na produces → 1.522 mol of NaCl.

∴ The mass of the produced salt (NaCl) = (no. of moles)(molar mass) = (1.522 mol)(58.44 g/mol) = 88.95 g ≅ 89.0 g.

Final answer:

To find the maximum amount of NaCl produced from 35.0g of Na and 100.0g of Cl2, determine the limiting reactant and calculate the moles to find the answer of 75.8g.

Explanation:

To determine the maximum amount of NaCl that can be produced from 35.0g of Na and 100.0g of Cl2, you need to identify the limiting reactant in the reaction.

The molar mass of NaCl is 58.44g/mol, so we can calculate the moles of Na and Cl2 to see which one will run out first, limiting the amount of NaCl produced.

The maximum amount of NaCl that can be produced is 75.8g.

How are evaporation and sublimation similar?
A Both involve the formation of a gas.
B Both release energy to the surroundings.
C Both take place throughout a solid.
D Both take place at the surface of a liquid.

Answers

Answer:

Both involve the formation of gas.

Answer:

A Both involve the formation of a gas.

Explanation:

Sublimation occurs when it passes from the solid-state to the gaseous state without going through the liquid state.

Evaporation occurs when it passes from the liquid state to the gaseous state.

These processes have in common that the final state they reach is the gaseous state.

A sample of an unknown volatile liquid was injected into a Dumas flask (mass of flask=
27.0928 g. Volume of the flask is 0.1040L) and heated until no visible traces of the
liquid could be found. The flask and its contents were then rapidly cooled and
reweighed (mass of flask + vapor = 27.4593 g). The atmospheric pressure and
temperature during the experiment were 0.976 atm and 18.0°C, respectively. The
unknown volatile liquid was_ (make sure you use the proper name for this
organic compound)

Answers

Final answer:

The unknown volatile liquid in your Dumas flask is most likely water due to its molar mass of approximately 18 g/mol

Explanation:

The identity of the unknown volatile liquid in your Dumas flask can be determined using the ideal gas law equation PV=nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in kelvins. By rearranging this equation to n=m/M, we can find the molar mass (M). With your provided figures (change in mass = 27.4593 g - 27.0928 g, V=0.104L, P=0.976 atm, T=18°C + 273=291K), we find M=~18 g/mol. This molar mass is most closely correlated to the organic compound known as Water (H2O).

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which of these energy resources does not pollute when used

Answers

Answer:

Solar power: solar power converts the sun's energy into energy we can use.Nuclear power: heat is used to generate steam that drives a steam turbine connected to a generator that produces electricity.Hydroelectric energy: hydroelectric power plants use a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.Wave energy: wave energy proves itself to be a valuable contributor to alternative energy fuel sources with wave energy converters.Biofuels: biofuels make use of animal and plant life to create energy.Natural gas: emits greenhouse gases, but the amount is lower than with fossil fuels.Geothermal power: geothermal power is about extracting energy from the ground Wind energy: it uses wind as energy and it makes use of a renewable source and generates no waste.Biomass energy: biomass energy comes in a number of forms. For example, burning wood has been used for thousands of years to create heat, but more recent advancements have also seen waste, such as that in landfills, and alcohol products used for similar purposes.Tidal energy: tidal energy uses the power of water to generate energyHydrogen gas: hydrogen is a completely clean burning fuel. Once produced, hydrogen gas cells emit only water vapor and warm air.

lons are defined as ____
a) atoms that have lost or gained an electron and have a charge.
b)atoms that are bonded to other atoms of the same element
c)neutral atoms
d)nuclear atoms​

Answers

Answer:A

Explanation: ion

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Answer:

Option A) Atoms have lost or gained an electron and have a charge

Explanation:

The result of a loss or gained electron can cause a large or lesser number of protons than the electrons, which causes a charge imbalance because protons have a positive charge and electrons have a negative charge.  If the number of protons or the number of electrons is unequal, then it means that the atom has a charge, and is an ion.  It is a cation if it lost an electron such that it has a positive charge and it is an anion if it gained an electron such that it has a negative charge.

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Which question cannot be answered scientifically?
A. How many particles do two gases at the same temperature and pressure contain?
B. What happens to a gas at standard temperature and pressure?
C. How does a gas react when heated to 100 degrees Celsius?
D. What happens to a sample of gas at absolute zero?

Answers

Answer:

b. What happens to a gas at standard temperature and pressure?

Explanation:

YEET

B because all other answers could be tested

Which of these natural resources is non-renewable A.Corn B.wind c.geothermal D.natural gas

Answers

Answer: D. Natural Gas

Explanation: There is only a limited supply of natural gas on our planet, and if we use up that supply, there is no way of more natural gas being generated.

The correct answer would be: D. Natural gas

This would be the correct answer since natural gases are considered a fossil fuel. The other options are renewable resources. Corn can be reproduced. Wind is a source of energy which makes it renewable. Geothermal is also a renewable resource since its heat is from the earth's core which could be used multiple times.

Hope this helps! :3

What is the most striking part of the Rutherford scattering stimulation?

Answers

Answer:

bye

Explanation:

What does the oxidizing agent do in a redox reaction?

A. Oxidizes another atom

B. Gets oxidized

C. Donates electrons

D. Reduces another atom

Answers

The oxidizing agent do in a redox reaction is "donates electrons".

What is oxidizing agent?

A material that obtains electrons and would be reduced, which results in a drop in oxidation state, would be an oxidizing agent. The other substance oxidized to form due to it.

What are electrons?

The smallest elemental component of an atom, the electron has a negative charge. In a neutral atom, there are an equal number of protons as well as electrons.

Therefore, the oxidizing agent do in a redox reaction is "donates electrons".

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Answer:

A. Oxidizes another atom

Explanation:

Just did the quiz and guessed B, but got it wrong, and showed me that A is correct.

what is the best describtion of the side of the moon that faces earth?

Answers

It would be answer c it would change

Answer:

It would change

Explanation:

The formation of a solid, also known as a _____, is an indication of a chemical change. precipitate particulate particle powder

Answers

Answer:

Precipitate

Explanation:

Precipitation is actually a chemical reaction that occurs when a solid form is produced from a solution. The solid form is called the precipitate if precipitation occurs in a liquid solution. Precipitates formed are generally, insoluble. This type of reaction can be used to remove salts from a solution, like in the process of purification.

Answer:

Answer: precipitate

Explanation: Chemical change is a change in which the chemical composition of the atoms changes. The following changes are seen when chemical reaction takes place:

1) Release or absorption of heat

2) Formation of solid or a precipitate

3) Change in color

4) Production of gas

Explanation:

Describe how you would prepare 500.0mL of an aqueous solution that is 30.0% isopropyl alcohol by volume

Answers

Answer:

The solution can be prepared by adding 150.0 mL of isopropyl alcohol to 350.0 mL of water to make 30.0% isopropyl alcohol aqueous solution.

Explanation:

∵ The volume% of a solution = [(volume of the solute(isopropy)/(volume of the solution)] x 100.

The volume % = 30.0%, volume of the solution = 500.0 mL.

∴ Volume of the solute = (the volume% of a solution)(volume of the solution)/100 = (30.0%)(500.0 mL)/100 = 150.0 mL.

∵ The volume of solution = volume of the solute + volume of water

∴ Volume of water = volume of the solution - volume of the solute = (500.0 mL) - (350.0 mL) = 150.0 mL.

So, the solution can be prepared by adding 150.0 mL of isopropyl alcohol to 350.0 mL of water to make 30.0% isopropyl alcohol aqueous solution.

Final answer:

To prepare a 500.0mL solution of 30.0% isopropyl alcohol by volume, measure 150.0 mL of pure isopropyl alcohol, add it to a 500 mL volumetric flask, fill the flask to the mark with distilled water, and mix well.

Explanation:

To prepare 500.0mL of a 30.0% isopropyl alcohol by volume aqueous solution, you'll need to calculate the volume of pure isopropyl alcohol required and then make up the rest of the volume with water. Here is a step-by-step procedure:

Calculate the volume of isopropyl alcohol needed: Since the solution needs to be 30.0% isopropyl alcohol by volume, this means 30.0% of the final solution's volume should be pure isopropyl alcohol. For 500.0 mL of solution, 30.0% of 500.0 mL is 150.0 mL. Therefore, you need 150.0 mL of isopropyl alcohol.Measure 150.0 mL of pure isopropyl alcohol using a graduated cylinder and transfer it into a 500 mL volumetric flask.Fill the volumetric flask with distilled water up to the 500 mL mark. This step ensures that the final volume of the solution is exactly 500.0 mL, making the solution 30.0% isopropyl alcohol by volume.Cap the flask and invert it several times to mix the solution thoroughly.

By following these steps, you will have successfully prepared a 500.0mL solution of 30.0% isopropyl alcohol by volume.

__________ is the most widely used method of formally measuring public opinion.
A. Face-to-face interviewing
B. Polling
C. The census
D. Democratic elections

Answers

Answer:

B. Polling is the most widely used method of formally measuring public opinion.

Answer:

B. Polling

Explanation:

The most widely sued method to obtain data without any time lag or any sort of problem and the privacy of the respondents are considered accordingly. The public opinion cannot take face to face thus this method is most suitable for large masses. It helps to gather data quickly is cost-effective and does not allow much biasness. Polling can be done on any subject any topic.

what type of circuit is illustrated

a) series circuit

b) short circuit

c) open circuit

d) parallel circuit

Answers


The type of circuit depicted above is an example of a parallel circuit. Parallel circuits are circuits that have several pathways for current to flow; the easiest way to see this is by drawing a condensed diagram. If one of the bulbs were removed (that particular pathway was opened so electricity couldn’t flow), the current could simply go through another pathway using another lightbulb and the circuit would still be complete. Series circuits only have one pathway that the current can flow through, which this can’t be since it has multiple. The circuit isn’t shorted since the lightbulb reduces the voltage to zero, and the circuit is closed since the lightbulbs are on.

Hope this helps!

how many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Answers

Answer:

Silver has to give up one electron.

Explanation:

Silver is a transition element and has a partially filled 4d- orbital having 9 electrons and a 5s orbital having 2 electrons in it. In order to achieve stability, silver must have completely filled d-orbital having a maximum number of 10 electrons in it.

Therefore, one electron from 5s orbital jumps to 4d orbital to make it stable. Now, 5s orbital has only one electron, and it will be easy for silver to lose this electron to attain a stable electronic configuration.

A medium of free floating positive and negative charges are called ?

Answers

Answer:

Plasma

Explanation:

Mostly this occurs at very high temperatures that cause atoms to lose electrons. Plasma is therefore a gas but of ions. Plasma can conduct electricity and can be influenced by magnetic fields. Plasma occurs mostly in stars where it is the dominant state of matter.  

Answer:

Plasma

Explanation:

Answer via Founder's Education/ Educere. Plasma fits the definition of the answer because it contains both positive and negitive free-flowing charges.

The elements in group 17 of the periodic table are all called halogens. All halogens have the same

atomic number.

atomic mass.

number of possible isotopes.

number of valence electrons.

Answers

Answer:

They have the same number of valence electrons

Explanation:

The groups on the periodic table are the vertical lines of groups. In group 18 the elements are known as noble gases. They have all 8 valence electrons. As you go to the left the groups have one less valence electron. Group 17 has 7 valence electrons.

The elements in group 17 of the periodic table are called halogens. All halogens have the same number of valence electrons.

What are Halogens?

Elements that have 7 electrons in their last subshell and belong to group 17 are known as Halogens. Names of different halogens are:

FluorineChlorineBromineIodine

All the elements of Group 17 contain 7  valence electrons.

Fluorine is the most electronegative element in the periodic table. Fluorine is a highly toxic gas and breathing the fluorine can be lethal for human beings. People when exposed to fluorine gas can experience arthritis.

Chlorine gas is also a toxic gas for human beings.

Bromine is less toxic than chlorine and fluorine. Bromide has a lethal dose of 30 mg.

Iodine is also somewhat less toxic. Iodine is also used as a Tincture of Iodine. Exposure to Iodine can lead to irritation in the eyes and lungs.

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Neutral atoms of argon, atomic number 18, have the same number of electrons as each of the following items except: Cl- S -2 K+ Ca +2 Ne

Answers

Answer:

Ne.

Explanation:

Neutral argon, atomic number 18, has 18 electrons.

Cl⁻:

Neutral atom of Cl, atomic number 17, has 17 electrons.

When it gains electron and be Cl⁻, then it has 18 electrons a neutral Ar.

S²⁻:

Neutral atom of S, atomic number 16, has 16 electrons.

When it gains 2 electrons and be S²⁻, then it has 18 electrons a neutral Ar.

K⁺:

Neutral atom of K, atomic number 19, has 19 electrons.

When it losses electron and be K⁺, then it has 18 electrons a neutral Ar.

Ca²⁺:

Neutral atom of Ca, atomic number 20, has 20 electrons.

When it losses 2 electrons and be Ca²⁺, then it has 18 electrons a neutral Ar.

Ne:

It is a noble gas that has 10 electrons.

So, the right choice is: Ne.

the answer is ne

Explanation:

Equivalent weight of h2co3

Answers

Answer: 62.02478 g/mol

Explanation:

Answer:

31 grams per equivalent.

Explanation:

The valence of carbonic acid (H2CO3) is two (there are two replaceable hydrogen ions). The molecular weight of H2CO3 is: 2*1 + 12 + 3*16 = 62 g/mol. Therefore, the equivalent weight is: 62/2 = 31 grams per equivalent.

What is the concentration of a saturated solution of SrSO4? SrSO4 has a Ksp of 3.2 x 10–7

Answers

SrSo4 = Sr(2+) + SO4(2-)

Let’s say that the initial concentration of SrSo4 was 1. ( or we have 1 mole of this reagent).

When The reaction occurs part of SrSo4is dissociated. And we get X mole Sr(2+) and So4(2-).
Ksp=[Sr(2+)]*[SO4(2-)]
X^2=3.2*10^-7
X=5.6*10^-4

Final answer:

The concentration of a saturated solution of SrSO4 can be calculated by taking the square root of the Ksp value, in this case, sqrt(3.2 x 10⁻⁷), to find the solubility 's', which represents the concentration of both Sr²+ and SO₄⁻²ions in mol/L.

Explanation:

Calculating the Saturation Concentration of SrSO₄

To determine the concentration of a saturated solution of SrSO₄, given its Ksp (solubility product constant) of 3.2 x 10⁻⁷, we set up the equilibrium expression for the dissolution of SrSO₄:

SrSO₄(s) ⇌ Sr²⁺(aq) + SO₄²⁻(aq)

For each mole of SrSO4 that dissolves, one mole of Sr²⁺ and one mole of SO₄⁻²are produced in the solution. Therefore, if 's' represents the solubility of SrSO₄in molarity (mol/L), then the concentrations of Sr⁺² and SO₄⁻² at saturation are both 's' M. Substituting 's' into the Ksp expression:

[tex]Ksp = [Sr^{2+}][SO4^{2-}] = s * s = s^{2}[/tex]

Solving for 's', we take the square root of Ksp:

s = √Ksp = √ 3.2 x 10⁻⁷,

Calculating this gives us the saturation concentration 's' of SrSO₄ in the solution.

Therefore, the concentration of the saturated solution of SrSO₄ is the value of 's' after solving the above equation.

Given: K = °C + 273.15

What is the temperature of the flame in degrees Celsius?

You measure the flame of a candle and get a reading of 1,376.06 K. This value is equal to

Answers

Answer:

Tk=TC+273.15

so

1376.06=Tc+273.15

TC=1376.06-273.15

TC= =1,102.91

Answer: 1102.91 ºC

Explanation: To solve this problem, we only need to isolate the temperature in Celsius from the given equation:

TK=TºC+273.15

TºC=TK-273.15

now, replacing the temperature of the flame in K:

TºC=1376.06-273.15

TºC=1102.91 ºC

Other Questions
How long does it take venus to orbit the sun How did post -world war 1 treaties affect national borders in Europe and Asia Accuracy in the translation of mRNA into the sequence of amino acids in a polypeptide depends on specificity in which of the following?1) binding of ribosomes to mRNA 2) shape of the A and P sites of ribosomes 3) attachment of amino acids to tRNAs 4) bonding of the anticodon the codon and the attachment of amino acids to tRNAs What did France do in 1883? Karen is running forward at a speed of 9 m/s. She tosses her sweaty headband backward at a speed of 20 m/s. The speed of the headband, to the nearest whole number relative to a stationary observer watching Karen A(n) 1100 kg car is parked on a 4 incline. The acceleration of gravity is 9.8 m/s 2 . Find the force of friction keeping the car from sliding down the incline. how can caregivers arrange the room to facilitate play? ECE What is the factored form of x2 - 6x - 16?0 (X - 4)(x - 2)(x + 4)(x - 2)(x - 2)(X + 8)(x - 3)(x + 2)000 (31) What should food workers use to protect ready-to-eat food from contamination? A. Finger cots B. Cloth gloves C. Sanitizing wipes D. Single-use gloves Ethnic cleansing, like that in Bosnia-Herzegovina, often is supported by the general population after...A) Expelling opposition leadersB) significant political or economic instability C) confiscated private property D) a push for increases in military spending What is the 12th term in the sequence?12, 15, 18, 21, ...a) 38b) 45c) 42d) 48 Read the paragraph from a student's literary essay comparing two different works(1) Sandra Cisneros's "Mericans" is about a young American girl of Mexican descent who is struggling to find herown cultural identity (2) Cisneros illustrates this through a number of images and ideas. (3) For example, the speaker,Micaela, calls her grandmother "awful," and seems to resent the woman's strict views and religious ideals. (4) Thespeaker also mentions how she and her brother emulate characters from popular American television programswhen they play make-believe. (5) Lastly, she describes physically standing outside her family's church, an act thatsymbolizes the fact that she feels like an outsider to Mexican culture. (6) Although Micaela is of Mexican descent, sheseems to feel a stronger connection to the United States.This paragraph supports the idea that Micaelawishes her heritage was different because she has difficulty relating to her grandmother.wants to find her own unique identity that is separate from her brother and her grandmotherwill never accept her Mexican roots because of her feelings toward her grandmotheridentifies with her Mexican heritage in a different way than her grandmotherMark this and returnSave and ExitNextSubmit Which pair of words best describes Mrs. Comstock. How do apps and devices call the OS? Which statement best describes what energy transfer diagrams show?Energy can change form, but the total amount of energy stays the same.Every energy transformation results in a reduction of energyEnergy transformations result in fewer types of energyEach type of energy can change into one other type of energy A bag contains 2 steel balls and 5 brass balls. The total weight is 13 pounds. If 2 steel balls are added and 2 brass balls are removed, the weight decreases to 12 pounds. How much does each kind of ball weigh? Richards store sells pineapples and grapefruits. Pineapples originally cost $5.15 apiece, and grapefruits originally cost $2.25 apiece. Richard reduced the prices to $3.88 for a pineapple and $1.56 for a grapefruit. Which fruit had its price reduced by a greater percent, and how many percentage points greater was that reduction than the other? Round to two decimal places. (Express your answer in percentage points; for example, 15% is 3 percentage points greater than 12%.) a. The price of pineapples experienced a reduction 5.99 percentage points greater than the price of grapefruits. b. The price of pineapples experienced a reduction 19.90 percentage points greater than the price of grapefruits. c. The price of grapefruits experienced a reduction 6.01 percentage points greater than the price of pineapples. d. The price of grapefruits experienced a reduction 11.50 percentage points greater than the price of pineapples. Which statement accurately explains whether a reflection over the y-axis and a 270 counterclockwise rotation would map figure ACB onto itself? a coordinate plane with figure ACB with point A at 1, 1, C at 3, 4 and B at 5, 1 Yes, ACB is located at A(1, 1), C(4, 3), and B(1, 5) Yes, ACB is located at A(1, 1), C(3, 4), and B(5, 1) No, ACB is located at A(1, 1), C(4, 3), and B(1, 5) No, ACB is located at A(1, 1), C(3, 4), and B(5, 1) Read the two excerpts from act 2, scene 1, of The Tragedy of Julius Caesar. Excerpt 1: [BRUTUS.] Since Cassius first did whet me against Caesar I have not slept. Between the acting of a dreadful thing And the first motion, all the interim is Like a phantasma or a hideous dream. The genius and the mortal instruments Are then in council, and the state of man, Like to a little kingdom, suffers then The nature of an insurrection. Excerpt 2: BRUTUS. Kneel not, gentle Portia. . . . You are my true and honourable wife, As dear to me as are the ruddy drops That visit my sad heart. PORTIA. If this were true, then should I know this secret. . . . Tell me your counsels; I will not disclose 'em. I have made strong proof of my constancy, Giving myself a voluntary wound Here in the thigh. Can I bear that with patience, And not my husband's secrets? How do Brutuss moral dilemmas in each excerpt compare? If / (x) = 2(x)2 +5/(x+2), complete the following statement:f2) = _ Steam Workshop Downloader