Answer:
Explanation:
Balanced Chemical equation:
HClO₂(aq) + NaOH(aq) → H₂O(l) + NaClO₂ (aq)
Ionic equation:
H⁺(aq) + ClO₂⁻(aq) + Na⁺(aq) + OH⁻(aq) → H₂O(l) + Na⁺(aq) + ClO₂⁻ (aq)
Net ionic equation:
H⁺(aq) + OH⁻(aq) → H₂O(l)
The ClO₂⁻(aq) and Na⁺ (aq) are spectator ions that's why these are not written in net ionic equation. The water can not be splitted into ions because it is present in liquid form.
Spectator ions:
These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.
Chemical equation:
NaCl(aq) + KBr(aq) → NaBr(aq) + KCl(aq)
Ionic equation:
Na⁺(aq) + Cl⁻(aq) + K⁺(aq) + Br⁻(aq) → Na⁺(aq) + Br⁻(aq) + K⁺(aq) + Cl⁻(aq)
Net ionic equation can not be written for this reaction because nothing is changed on both side. There is no solid, liquid and gaseous product. All are aqueous and cancel each other.
Need help with this question.... Next to each Formula, write the number of atoms of each element found in one unit of the compound.
These are the Compounds below:
1. potassium iodide, KI
2. sodium sulfide, NA2S
3. silicon dioxide, SiO2
4. carbonic acid, H2CO3
Answer:
The number of atoms present in one unit of the following compounds is:
a). Potassium Iodide , KI = 2
b).Sodium Sulfide, [tex]Na_{2}S[/tex] = 3
c). Silicon Dioxide , [tex]SiO_{2}[/tex] = 3
d). Carbonic Acid ,[tex]H_{2}CO_{3}[/tex] = 6
Explanation:
Atomicity : It is defined as the number of atoms that are present in a given molecule/compound.
Atom : The smallest unit of matter is called atom. For e.g O is atom of oxygen but [tex]O_{2}[/tex] is not an atom , it is molecule of oxygen .
[tex]O_{2}[/tex] molecule has 2 atoms of Oxygen
Similarly Na , K , Fe are atoms but [tex]O_{2}[/tex] ,[tex]CO_{2}[/tex] ,[tex]N_{2}[/tex],[tex]H_{2}[/tex] are molecules
a).Potassium Iodide
KI = 1 atom of K + 1 atom of I
Total atoms = 2
b) Sodium Sulfide
[tex]Na_{2}S[/tex] = 2 atoms of Na + 1 atom of S
Total atoms = 3
c) Silicon Dioxide
[tex]SiO_{2}[/tex] = 1 atom of Si + 2 atoms of O
Total atoms = 3
d) Carbonic Acid
[tex]H_{2}CO_{3}[/tex] = 2 atom of H + 1 atom of C + 3 atom of O
= 2+1+3
Total atoms = 6
If you change the temperature of a gas but keep the volume the same, how does the pressure change?
Answer:
Charles' law states that the volume and temperature of a gas have a direct relationship: As temperature increases, volume increases, when pressure is held constant. Heating a gas increases the kinetic energy of the particles, causing the gas to expand.
Explanation:
Final answer:
If the temperature of a gas is increased while keeping the volume constant, the pressure will increase. If the temperature is decreased, the pressure will similarly decrease. This relationship is described by Gay-Lussac's Law.
Explanation:
When you change the temperature of a gas but keep the volume the same, according to Gay-Lussac's Law, the pressure of the gas changes directly with its absolute temperature. In other words, if you increase the temperature of the gas, the pressure will increase as well. Conversely, if you decrease the temperature, the pressure will decrease, as long as the volume is kept constant.
Temperature and Pressure Relationship
The relationship between temperature and pressure in a gas at constant volume is given by the equation P1/T1 = P2/T2, where P1 and P2 are the initial and final pressures, and T1 and T2 are the initial and final absolute temperatures respectively. So, to find out how the pressure changes with temperature, you can rearrange the formula to solve for the new pressure. Essentially, if you double the absolute temperature (measured in Kelvin), you double the pressure.
Will NaBr, CO2, Ca3(PO4), or KZS raise a liquid's boiling point the most when
dissolved, assuming the concentration of each solute is the same?
Answer:
[tex]K_2S[/tex]
Explanation:
According to the boiling point elevation law described by the equation [tex]\Delta T_b = iK_bb[/tex], the increase in boiling point is directly proportional to the van 't Hoff factor.
The van 't Hoff factor for nonelectrolytes is 1, while for ionic substances, it is equal to the number of moles of ions produced when 1 mole of salt dissolves.
[tex]NaBr[/tex] would produce 2 moles of ions per 1 mole of dissolved substance, sodium and bromide ions.
[tex]Ca_3(PO_4)_2[/tex] is insoluble in water, so it would barely dissociate and wouldn't practically change the boiling point.
[tex]K_2S[/tex] would dissociate into 3 moles of ions per 1 mole of substance, two potassium cations and one sulfide anion.
[tex]CO_2[/tex] is a gas, it would form some amount of carbonic acid when dissolved, however, carbonic acid is molecular and would yield i value of i = 1.
Therefore, potassium sulfide would raise a liquid's boiling point the most if all concentrations are equal.
1. Fermentation is a complex chemical process of making wine by converting glucose into ethanol and carbon dioxide:
C6H12o6 (s)→2C2H5OH(l) + 2CO2 (g)
A. Calculate the mass of ethanol produced if 500.0 grams of glucose reacts completely.
B. Calculate the volume of carbon dioxide gas produced at STP if 100.0 grams of glucose reacts.
C. If 17.5 moles of ethanol were produced, how many moles of glucose were there in the beginning?
The solution to these stoichiometric problems in the fermentaion process indicates that 500g of glucose would produce 256g of ethanol, 100g of glucose would produce 24.8L of CO2 at STP and if 17.5 moles of ethanol were produced, it would have taken 8.75 moles of glucose.
Explanation:The questions are centered on stoichiometry which relates to the quantitative relationship between reactants and products in a chemical reaction.
A. The molar mass of glucose (C6H12O6) is calculated as 180.16 g/mol. However, in the provided chemical equation, 1 mol of glucose produces 2 mols of ethanol. Therefore, the molar mass of ethanol (C2H5OH) is 46.07 g/mol. Therefore, 500g of glucose is equal to 500 / 180.16 = 2.776 moles. So, this would produce 2.776 * 2 * 46.07 = 256g of ethanol.
B. The molar mass of glucose (C6H12O6) is 180.16 g/mol and 100g would be 100 / 180.16 = 0.555 moles of glucose. This would produce 0.555 * 2 = 1.11 moles of CO2. At STP, 1 mole of gas occupies 22.4L. Therefore, 1.11 moles of CO2 will produce 1.11 * 22.4 = 24.8L of CO2.
C. As per the reaction, 1 mole of glucose makes 2 moles of ethanol. Therefore, if 17.5 moles of ethanol were produced, it would have taken 17.5 / 2 = 8.75 moles of glucose.
Learn more about Stoichiometry in Fermentation here:https://brainly.com/question/30215297
#SPJ12
atomic weight of Na is 23
atomic weight of Cl is 35
what is the percentage of sodium in NaCl?
Answer:
[tex]\large \boxed{40\, \%}[/tex]
Explanation:
1. Calculate the molar mass of NaCl
Na = 23 g
Cl = 35 g
Tot. = 58 g
2. Calculate the mass percent of Na
[tex]\text{\% of element} = \dfrac{\text{mass of element}}{\text{mass of compound}} \times 100 \, \% = \dfrac{\text{23 g}}{\text{58 g}} \times 100 \, \% =\mathbf{40\, \%}}[/tex]
[tex]\text{The percentage of Na in NaCl is $\large \boxed{\mathbf{40\, \% }}$}[/tex]
Which of the following properties of water allows an insect to “walk on water”?
A) Capillary action
B) Cohesion
C) Adhesion
D) Density
Answer:
B) Cohesion
Explanation:
The water molecules are more attracted to themselves than with air molecules. Droplets will cling to the body of water due to cohesion.
Answer:
E = Surface Tension
Explanation:
Insects are able to walk on water mainly due to surface tension. The insects legs have a very large surface area on their legs which enables them to walk on water. Another factor is their extremely light weight which enables them to exert a force on the surface of the water without breaking its film (surface area).
why must energy be controlled?
Answer:
Energy should be saved and controlled as it is better for the environment. Excess use of energy of any kind can be disastrous. For example, a kind of energy is stored in the food. If excess food is consumed and wasted, then the country and other people will have to face consequences of it. Malnutrition will rise.
Another kind of energy is the energy in the fuel. If fuel consumption is not controlled then in the near future the resources for the making of fuel will be depleted.
explain the law of conservative of energy, give a specific example using kinetic and potential energy that shows how energy is conversed.
Answer:
The Law of Conservation of Energy states that energy cannot be created or destroyed. In other words, the total energy of a system remains constant. This is an important concept to remember when dealing with energy problems. The two basic forms of energy that we will focus on are kinetic energy and potential energy.
Explanation:
In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.
Im bad at these questions hope it helps and have a good day.
A sample of sea water taken from the Atlantic ocean freezes at -2.14 degree Celsius and a sample taken from the Arctic ocean freezes at -1.96 degree Celsius. What is the molality of salt in each seawater sample? (Assume the only solute in each sample is sodium chloride)
Answer:
(a) 0.575 m;
(b) 0.527 m
Explanation:
Let's use the freezing point depression law in each of these cases.
(a) According to the law:
[tex]\Delta T_f = iK_fb[/tex]
Rearrange the equation for molality, b:
[tex]b = \frac{\Delta T_f}{iK_f}[/tex]
NaCl is an ionic substance, 1 mole of it dissociates into 2 moles of ions, sodium ion and chloride ion, this means the van 't Hoff factor i = 2.
[tex]\Delta T_f = T_o - T_n[/tex]
Here:
[tex]T_o = 0.00^oC[/tex] is the initial freezing point of water,
[tex]T_n = -2.14^oC[/tex] is the final freezing point of water.
For water:
[tex]K_f = 1.86^oC/m[/tex]
Applying the equation
[tex]b = \frac{2.14^oC}{2\cdot 1.86^oC/m} = 0.575 m[/tex]
(b) Applying the same equation for the same salt and the same conditions, except a new freezing point, we would expect to obtain:
[tex]b = \frac{1.96^oC}{2\cdot 1.86^oC/m} = 0.527 m[/tex]
Final answer:
The molality of salt in the Atlantic ocean seawater sample is calculated to be 0.575 mol/kg, while the molality in the Arctic ocean seawater sample is calculated to be 0.527 mol/kg. This is determined using the freezing point depression formula.
Explanation:
The subject of this question is the Calculation of Molality based on the observed freezing point depression of seawater samples from the Atlantic and Arctic Oceans. The freezing point depression phenomenon is when the freezing point of a liquid is lowered by adding a solute, such as salt in seawater. The formula to calculate molality (m) is derived from the freezing point depression formula: ΔT = i * Kf * m, where ΔT is the depression of the freezing point, Kf is the cryoscopic constant of water (1.86 °C kg/mol), m is the molality, and i is the van't Hoff factor (which is 2 for NaCl, as it dissociates into two ions).
Steps to Calculate Molality:
Calculate the freezing point depression (ΔT) by subtracting the freezing point of seawater from the freezing point of pure water (0°C).
Apply the formula ΔT = i * Kf * m, where i = 2 for NaCl, Kf = 1.86 °C kg/mol.
Rearrange the formula to solve for m (molality), which gives m = ΔT / (i * Kf).
Calculating for the Atlantic seawater sample: The freezing point depression is 0°C - (-2.14°C) = 2.14°C. Using the rearranged formula:
molality = 2.14°C / (2 * 1.86°C kg/mol) = 0.575 mol/kg
Calculating for the Arctic seawater sample: The freezing point depression is 0°C - (-1.96°C) = 1.96°C. Using the rearranged formula:
molality = 1.96°C / (2 * 1.86°C kg/mol) = 0.527 mol/kg
In conclusion, the molality of salt in the Atlantic ocean seawater sample is 0.575 mol/kg, and in the Arctic ocean seawater sample is 0.527 mol/kg.
At what temperature does mercury transition from a solid to a liquid
Answer:
-38.83°C
Explanation:
Weak acids and weak bases react with metals and have the ability to corrode metals.
True
False
Answer:
True
Explanation:
Answer:
TRUE
Explanation:
238 93 Np → 0 -1 e+ ?
Answer:
²³⁸₉₃Np → Pu₉₄²³⁸ + ⁰₋₁e
Explanation:
²³⁸₉₃Np → Pu₉₄²³⁸ + ⁰₋₁e
Beta radiations:
Beta radiations are result from the beta decay in which electron is ejected. The neutron inside of the nucleus converted into the proton an thus emit the electron which is called β particle.
The mass of beta particle is smaller than the alpha particles.
They can travel in air in few meter distance.
These radiations can penetrate into the human skin.
The sheet of aluminium is used to block the beta radiation
⁴₆C → ¹⁴₇N + ⁰₋₁e
The beta radiations are emitted in this reaction. The one electron is ejected and neutron is converted into proton.
Since the questions were asked so late, the only reason why I am answering this question is for the people who have the same question.
So, this question is asked like this:
Complete the following radioactive decay problem.
238 Np ⟶ 0 e + ___ ___
93 -1 ___
The answer is:
238 Pu
94
238 Np ⟶ 0 e + 238 Pu
93 -1 94
17. An industrially important element contains
Identify the element.
lement contains 26 electrons and rusts in the presence of air and moisture.
Answer:
Iron (Fe)
Explanation:
The number of electrons (-) is usually the same as the number of protons (+) in the atom of the element (unless it is an ion).
The element described has 26 electrons, so we can assume that it has 26 protons as well. The number of protons in an atom is the atomic number of element that the atom is.
Element 26 on the PTE is Iron (Fe), which does rust (oxidation) in air and water.
Classify the following as homogeneous and heterogeneous mixtures.
a) Soda water b)Milk c) Air d) Soil e) Blood
Answer:
Homogeneous mixture
a) Soda Water
b)Milk
c) Air
Heterogeneous mixture
d) Soil
e) Blood
c) Air
Explanation:
Mixture:
mixture is made up of different atoms and can be separated into its component by physical mean.
• The properties of the mixture are not same and contains the properties of all those component present in it.
• mixture is a combination of one or more Pure substances and can be separated by simple physical methods.
• it have varying boiling and melting point.
There are two types of mixture
Homogeneous mixture and heterogeneous mixture
Homogeneous mixture:
It have same uniform appearance and the different components cannot be distinguished by naked eye.
Heterogeneous mixture:
It do not have uniform appearance and the different components of the mixture can be distinguished and observed by naked eye.
Classification of the given mixtures
Homogeneous mixture Heterogeneous mixture
a) Soda Water d) Soil
b)Milk e) Blood
c) Air
Which of the following would be part of an aquatic ecosystem?
Question 6 options:
amount of sunlight
temperature
plankton
sponges
Answer:
Aquatic ecosystem has two components -
Biotic components2.Abiotic components
temperature and amount of sunlight are the part of abiotic component .
while living things like sponges and planktons are the biotic components of ecosystem.
Explanation:
aquatic components are of two types-
freshwater ecosystem( lakes and ponds, river and streams)
marine ecosystem(ocean ecosysyem, estuaries)
planktons-
planktons are found in limnetic zone, availability of sunlight is much here. planktons are zooplanktons and phytoplanktons are very important link in aquatic ecosystem.
sponges
In marine water, the benthic zone is the area below the pelagic zone. Here temperature decreased because of less light perception. This zone is very nutrient rich so organisms which are present here are- bacteria, fungi, sea anemone, sponges and some fishes.
Answer: All of the given choices.
Explanation:
The ecosystem can be defined as the combination of the biotic and abiotic factors. The biotic factors consists of the living systems and the abiotic factors consists of the non living parts of the ecosystem.
The biotic part of the aquatic ecosystem is sponges and plankton. This is because they are living.
The abiotic part of the aquatic system consists of amount of sunlight ad temperature of water because they are non living.
a force of 20N acts upon a 5kg block. calculate the acceleration of the object.
Answer:
4 m/s²
Explanation:
F/m
20N/4kg=
a= 4 m/s²
Type the correct answer in the box. Spell all words correctly.
In a blome, what term refers to the natural supply of water in the form of rain
Answer: hey buddy its not "blome" its biome
The correct term, which is used to describe the water coming from the sky due to the condensation of the water present in the cloud is precipitation. The precipitation is the water, which comes in form of the rain, hail, snow, drizzle or sleet. This is one of the main sources of the water supply in the biome.
i hope ur looking 4 the one underlined
The natural supply of water in the form of rain in a biome is known as precipitation, which is a key component of the Earth's water cycle.
In a biome, the term that refers to the natural supply of water in the form of rain is called precipitation. Precipitation can come in various forms such as rain, snow, sleet, and hail. When precipitation falls on the land, some of it may infiltrate the soil, replenishing groundwater supplies, or contribute to surface water bodies. This is a critical component of the Earth's water cycle, which includes infiltration and the water balance concept, where precipitation is balanced with other processes such as evaporation and transpiration.
calculate the molar mass of a metal that forms an oxide having the empirical formula M2O3 and contains 68.04% of the metal by mass. identify the metal.
Answer:
51.094 g/mol
Explanation:
We are given;
Empirical formula as M2O3Percentage of metal M by mass is 68.04%We are required to determine the molar mass of M
Step 1: Determine the percentage by Mass of Oxygen in the compound
% by mass of Oxygen = 100% -68.04%
= 31.96%
Step 2: Mass of M in the compound
Mass of oxygen in the compound = 16.0 g × 3 atoms
= 48.0 g
Therefore; 48.0 g is equivalent to 31.96% of the compound.
Thus; 68.04 % will be equivalent to a mass of ;
= (48.0 g × 68.04%) ÷ 31.96%
= 102.188 g
Step 3: molar mass of M
Mass of M in the compound is 102.188 g
But there are two atoms of M in the compound
Therefore; Molar mass of M = 102.188 g ÷ 2
=51.094 g
Thus, the molar mass of M is 51.094 g/mol
To find the molar mass of a metal in a compound with empirical formula M2O3, assume a 100 g sample and calculate moles of metal and oxygen. The molar mass is found by dividing the mass of metal by its moles. The closest actual metal molar mass corresponds to aluminum.
Explanation:To calculate the molar mass of a metal that forms an oxide with the empirical formula M2O3, we'll start by taking the given percentage of the metal in the compound and assume a 100 g sample for ease of calculation. The mass of the metal in this sample is 68.04 g, and the mass of oxygen is the remaining 31.96 g.
Next, we'll find the number of moles of each element in the compound:
Since the empirical formula is M2O3, this means there are two moles of metal for every three moles of oxygen. We can set up the ratio like this:
We will use the moles of oxygen to figure out the moles of the metal required to form this ratio:
(2 moles M / 3 moles O) = x moles M / 1.9975 moles O
Solving for x gives us:
x = (2/3) * 1.9975 = 1.3317 moles of M
Now, we can calculate the molar mass of the metal by dividing the mass of metal by the moles of metal:
Molar mass of M = 68.04 g / 1.3317 mol = 51.07 g/mol
The metal with a molar mass close to this value is aluminum (Al), with a molar mass of 26.98 g/mol. Taking into account the empirical formula M2O3, we need two moles of Al to make up the mass, so:
2 * 26.98 g/mol = 53.96 g/mol
The value is close to our calculated molar mass, confirming the metal in the oxide is most likely aluminum.
Learn more about Molar Mass Calculation here:https://brainly.com/question/25879634
#SPJ3
Energy stored in the bonds that hold together the atoms and molecules of all substances is called Energy stored in the bonds that hold together the atoms and molecules of all substances is called
Answer:
Chemical energy!
Answer:
CHEMICAL ENERGY is your correct answer for this question
Explanation:
Cho recorded the weather in her town for a week. She wrote down her observations in the table below. Mon Tue Wed Thu Fri Sat Sun High Temperature (degrees C) 23 22 22 21 17 14 14 Amount of Precipitation (cm) 0 0 0 0 1 3 5 If the trend in the weather pattern continues over the next week, what kind of weather do you predict Cho's town will have next week?
Answer:
If this trend continues, the following week will be cooler, and a large amount of rain will fall.
Explanation:
Patterns and trends can often be found in data sets. During the week that Cho recorded the weather, the temperatures consistently dropped by one to four degrees each day. At the end of the week, the amount of precipitation increased daily.
Answer:
it will be cold and rain
Explanation:
did it on study island
What type of reaction is the following? 2Fe2O3 + 3C -> 4Fe + 3CO2
Why is this not considered single displacement?
Answer:
This is an oxidation/reduction reaction.
Explanation:
C is oxidized (loses electrons) and iron is reduced (gains electrons). C goes from oxidation number zero on the left to oxidation number 4+ on the right. Iron goes from oxidation number 3+ on the left to zero on the right.
PLEASE HELP ASAP
Which group tells the three unifying characteristics of chordates?
notochord, gill slits, dorsal nerve cord
dorsal nerve cord, radial symmetry, three layers of cells
water vascular system, backbone, gill slits
exoskeleton, notochord, lungs
The group that tells the three unifying characteristics of chordates is "notochord, gill slits, dorsal nerve cord."
Chordates are a group of animals that have these three key features:
1. Notochord: This is a flexible rod-like structure that runs along the length of the animal's body. It provides support and helps with locomotion.
2. Gill Slits: Chordates have openings called gill slits in their throat region. These slits are used for respiration in aquatic chordates, allowing them to extract oxygen from the water.
3. Dorsal Nerve Cord: Chordates have a nerve cord that runs along their back, called the dorsal nerve cord. This cord is part of their nervous system and serves as the main communication pathway between the brain and the rest of the body.
By having these three characteristics, notochord, gill slits, and dorsal nerve cord, animals can be classified as chordates. Remember that these characteristics may vary or be modified in different groups of chordates, but they are the unifying traits that define the chordate group.
Thomas had a volume of 8.5 g of sodium chloride. What is the molar mass.?
Answer:
58.44 g/mol
Explanation:
In this problem, make sure to remember that volume is measured in mL, L or any other units of volume. Remember that g represents grams, and grams is a measure of mass.
However, independent of what mass or what volume we take, molar mass is known to be an intensive property. That is, molar mass doesn't depend on any external conditions or any measurements.
Molar mass solely depends on the chemical structure of a compound and is a constant number at any given conditions.
In this problem, we are given sodium chloride, NaCl. In order to find its molar mass, we need to refer to the periodic table, find the atomic masses of Na and Cl and then add them up to have the molar mass of NaCl:
[tex]M_{NaCl} = M_{Na} + M_{Cl} = 22.99 g/mol + 35.453 g/mol = 58.44 g/mol[/tex]
What chemicals are produced during the use of e-cigarettes
Answer:
tar and nicotine which are produced when the tobacco leaves are burning.
In an acid-base titration, 23.30 mL of hydrochloric acid were neutralized by 19.50 mL of 0.315 mol/L potassium hydroxide. Calculate the concentration of the hydrochloric acid.
Answer: 0.264mol/L
Explanation:Please see attachment for explanation
Explain the relationship between the plate tectonics and volcanoes
Answer:
Explanation:
According to the theory of plate tectonics, Earth is an active planet. Its surface is composed of many individual plates that move and interact, constantly changing and reshaping Earth's outer layer. Volcanoes and earthquakes both result from the movement of tectonic plates. Plates sliding past each other cause friction and heat. Subducting plates melt into the mantle, and diverging plates create new crust material. Subducting plates, where one tectonic plate is being driven under another, are associated with volcanoes and earthquakes.
Answer:
Plates sliding past each other cause friction and heat. Subducting plates melt into the mantle, and diverging plates create new crust material. Subducting plates, where one tectonic plate is being driven under another, are associated with volcanoes and earthquakes.
Need help please give me the right answers not wrong please and thank you
Answer:
2-d
3- d
4. c
5. c
6. a
Explanation:
30.04
Acid rain can be destructive to both the natural environment and human-made structures. The equation below shows a
reaction that occurs that may lead to the formation of acid rain.
3NO2 + H2O → 2HNO3 + NO
How many moles (precise to the nearest 0.01 mol) of nitric acid are produced from 300.00 mol of nitrogen dioxide?
200 moles of nitric acid.
Explanation:
We have the following chemical equation:
3 NO₂ + H₂O → 2 HNO₃+ NO
Taking in account the chemical equation, we devise the following reasoning:
if 3 moles of nitric dioxide (NO₂) produce 2 moles of nitric acid (HNO₃)
then 300 moles of nitric dioxide (NO₂) produce X moles of nitric acid (HNO₃)
X = (300 × 2) / 3 = 200 moles of nitric acid.
Learn more about:
number of moles
https://brainly.com/question/14200188
https://brainly.com/question/14128068
#learnwithBrainly
Which stage of the cell involves cell growth and DNA replication?
Answer: Interphase
Explanation: This is the stage in mitosis where the cell grows, and DNA is being replicated. This happens during the Synthesis Phase of Interphase.
Answer: C interphase
Explanation:
Different ____________of an element have different numbers of neutrons.
Answer:
Isotopes
Explanation:
Answer: Isotopes
Explanation: Every atom/element is defined by the number of protons. So if it has 1 proton it's hydrogen no matter what, if it has 2 protons it's helium no matter what and so on. So if you know the number of protons, you know the element.
You can change the neutrons and you will get isotopes. Atoms that have different numbers of neutrons are called isotopes of each other. However, the element is the same but one is going to be a little bit heavier or lighter than another.