Nitrogen has an electronegativity of 3.0, and hydrogen has an electronegativity of 2.1. which describes the bond between nitrogen and hydrogen?

Answers

Answer 1

The bond between nitrogen and nitrogen is a POLAR COVALENT BOND. The type of bond in a compound can be predicted using the electronegativity values of the elements involved. The difference in electronegativities of the two element is 3.0 - 2.1 = 0.90. For polar compounds, the difference in electonegativity of the elements is between 0.3 and 1.4.

Related Questions

The primary anthropogenic source of atmospheric carbon dioxide (co2 ) is

Answers

Burning of oil,gases and coal are the antropogenic source of co2

For elements to maintain a neutral charge, which two particles must have equal numbers?

Answers

protons and electrons

Explanation:

An atom holds three sub-atomic particles and these are protons, neutrons and electrons.

Protons have a positive charge, neutrons have no charge and electrons have a negative charge.

Also, when an atom or element is neutral in nature then it means it contains same number of protons and electrons.

For example, sodium element is a neutral atom as it contains 11 protons and 11 electrons.

Thus, we can conclude that for elements to maintain a neutral charge, protons and electrons are the two particles that must have equal numbers.

Select all that apply. A beta particle:
is electromagnetic energy
is an electron has zero charge
is emitted from the nucleus
has a +2 charge
has a -1 charge

Answers

In quantum matter, all things in the world are made up of even smaller particles than the atom. These are called the subatomic particles: neutron, proton and electron. A beta particle is simply an electron. It is an electromagnetic particle or wave. Electromagnetic particles are high-energy particles that are emitted by the atom during radioactive decay. Since it is an electron, its charge must be -1 and it must come from outside the nucleus of the atom. From the choices, the answers would be:

is electromagnetic energy
has a -1 charge

It is an electron

It is emitted from the nucleus

Has a -1 charge

It is these three options. Took a test and it is correct, hope it helps.

How many milliliters of a 1:2000 drug "i" solution and a 7% drug "i" solution mixed would make 120ml of a 3.5% solution of drug "i"?

Answers

To solve this problem, let us say that:

x = volume of 1:2000 drug "i" solution

y = volume of 7% drug "i" solution

Assuming volume additive, then this forms:

x + y = 120 mL

x = 120 – y ---> 1

1:2000 also refers to 0.0005 concentrations and 7% also refers to 0.07 concentrations. By doing a component balance:

0.0005 x + 0.07 y = 0.035 (120 mL)

0.0005 x + 0.07 y = 4.2

Substituting equation 1 into this derived equation to get an equation in terms of y:

0.0005 (120 – y) + 0.07 y = 4.2

0.06 – 0.0005 y + 0.07 y = 4.2

0.0695 y = 4.14

y = 59.568 mL = 59.57 mL

From equation 1, x would be:

x = 120 - 59.57

x = 60.43 mL

Answers:

59.57 mL of 1:2000 drug "i" solution

60.43 mL of 7% drug "i" solution

What is the coefficient of mno2 when you balance the equation for this redox reaction? kcn(aq) + kmno4(aq) + h2o(l) → kcno(aq) + mno2(s) + koh(aq)?

Answers

kcn(aq)+kmno4(aq)+h2o(l)----->2mno2(s)+koh(aq)

Taking a test with this question on it. I believe the answer is 2

What is the molar ratio for the following equation after it has been properly balanced?
____C3H8 + ____O2 Imported Asset ____CO2 + ____ H2O

Reactants: C3H8 = 2, O2 = 5; Products: CO2 = 6 and H2O = 4

Reactants: C3H8 = 1, O2 = 5; Products: CO2 = 3 and H2O = 4

Reactants: C3H8 = 1, O2 = 8; Products: CO2 = 3 and H2O = 4

Reactants: C3H8 = 1, O2 = 5; Products: CO2 = 3 and H2O = 5

Answers

the answer
the molar ratio for the following equation
____C3H8 + ____O2 Imported Asset ____CO2 + ____ H2O

after it has been properly balanced:
__1_C3H8 + ____5O2 Imported Asset ____3CO2 + ____ 4H2O

proof:
number of C =3 (C3H8; 3CO2)
number of H =8 (C3H8 ; 4H2O)
number of O = 10(5x2) or (2x3+4) (5O2;4H2O)

the answer is
Reactants: C3H8 = 1, O2 = 8; Products: CO2 = 3 and H2O = 4

The correct option is b. The balanced chemical equation for the combustion of propane is C₃H₈ + 5O₂ → 3CO₂ + 4H₂O. The molar ratio of the reactants and products is 1:5:3:4. Therefore, the correct option given is Reactants: C₃H₈ = 1, O₂ = 5; Products: CO₂ = 3, H₂O = 4.

The molar ratio for the combustion of propane (C₃H₈ ), we must first balance the chemical equation. The unbalanced equation is: C₃H₈ + O₂ → CO₂ + H₂O

Balancing carbon (C) atoms: C₃H₈ + O₂ → 3CO₂ + H₂O

Balancing hydrogen (H) atoms: C₃H₈ + O₂ → 3CO₂ + 4H₂O

Balancing oxygen (O) atoms: C₃H₈ + 5O₂ → 3CO2 + 4H₂O

Therefore, the balanced equation is: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

From this balanced equation, we see the molar ratio is: C₃H₈ : O₂ : CO₂ : H2O = 1 : 5 : 3 : 4

Thus, the correct choice is B : Reactants: C₃H₈ = 1, O₂= 5; Products: CO₂ = 3, H2O = 4

Write a detailed mechanism for the formation of ethyl acetate from ethanol and acetic acid with h2so4 as a catalyst?

Answers

This reaction between a carboxylic acid and an alcohol in the presence of an acidic catalyst is called the Fischer Esterification. The overall reaction is

CH₃CH₂OH + CH₃C=OOH ⇒ CH₃CH₂C=OOCH₃ + H₂O

If you see closely, the change that happened here is that the CH₃COO- in the acetic acid is transferred to the ethanol by forming a carbonyl group, C=O. The remaining H⁺ in the acetic acid reacts with the remaining OH⁻ of the ethanol to form H₂O. But there are actually 5 steps that happened to get to the final products. The steps are shown in the picture. I actually got that online as a reference.

As a summary, the C in the acetic acid is protonated by the acid catalyst. So as a result, it becomes an attractive electrophile. It is more reactive so it will undergo substitution by the alcohol. The protonated H⁺ is transferred to one of the OH⁻ groups. Next, the water is replaced or removed to yield the deprotonated ester that is ethyl acetate.

why N2 has a lower boiling point than CO?

Answers

CO HAS A HIGHER BOILING POINT BECAUSE THE INTEMOLECULAR FORCES ARE STRONGER THEN N2 WHICH IS NON POLAR. CO HAS A HIGHE BOILING POINT BECAUSE THE INTEMOLECULAR FORCES ARE STRONGER THEN N2 WHICH IS NON POLAR

Final answer:

N2 has a lower boiling point than CO because N2, being a nonpolar molecule, can't exhibit dipole-dipole attractions that CO, being a polar molecule, can. This results in weaker intermolecular forces in N2 than CO, hence a lower boiling point.

Explanation:

The reason why N2 has a lower boiling point than CO is due to the different intermolecular forces they experience. Both CO and N2 are diatomic molecules with similar atomic masses, therefore, they experience similar London dispersion forces. However, the key difference is that CO is a polar molecule and thus, it experiences dipole-dipole attractions. On the other hand, N2 is a nonpolar molecule and therefore, can't exhibit dipole-dipole attractions. Hence, the dipole-dipole attractions in CO are stronger than the dispersion forces in N2, leading to a higher boiling point for CO.

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A sample of propane, c3h8, contains 15.7 moles of carbon atoms. how many total moles of atoms does the sample contain?

Answers

Examining the sample, we find that each 3 moles of carbon combine with 8 moles of hydrogen.
The ration is thus 3:8

Based on this, we can calculate the number of hydrogen moles in the sample as follows:
number of hydrogen moles = 15.7 x 8 ∕ 3 = 41.8667 moles

Total number of moles in the sample = 15.7 + 41.8667 = 57.5667 moles

Final answer:

To find the total moles of atoms in the propane sample, consider its molecular formula, with 3 carbon atoms and 8 hydrogen atoms.

Explanation:

The total moles of atoms in the propane sample can be calculated by considering the molecular formula of propane, C₃H₈.

Propane consists of 3 carbon atoms and 8 hydrogen atoms.

Therefore, in the given sample, there are a total of 3 x 15.7 moles of carbon atoms and 8 x 15.7 moles of hydrogen atoms.

What is the lewis structure of the covalent compound that contains one nitrogen atom, one hydrogen atom, and one carbon atom?

Answers

H can only form one bond, carbon can form 4 bonds and N can form three bons, so the H will bond the carbon and this will form a triple bond with N:

H- C (triple bond) N

Now, you must count the valence electrons to see if there are some electrons not forming bonds.

H has one valence electron which is in the H - C bond.

C has four valence electrons which are one in the H - C bond and three in the CN bonds.

N has five valence electrons and it has three of them in the CN bonds, therefore you have to add two electrons (points or other marks) to the N atom.

This is the resultant Lewis structrue:

**
H - C (triple bond) N

Where you have to draw three hyphens to represent the triple bond and include the two ** over the N atom to represent the two electrons that are not forming a bond.

Final answer:

The Lewis structure of the covalent compound HCN consists of a carbon atom connected to a hydrogen atom with a single bond and a nitrogen atom with a triple bond. Both carbon and nitrogen have a linear electron-pair and molecular geometry.

Explanation:

The Lewis structure for a covalent compound containing one nitrogen atom, one hydrogen atom, and one carbon atom would be HCN. In the Lewis structure of HCN, carbon is the central atom, connected with a single bond to hydrogen and a triple bond to nitrogen. The nitrogen atom will have one lone pair. The Lewis structure help us visualize the distribution of valence electrons among atoms.

Here, the electron-pair geometries would be nitrogen-tetrahedral, carbon-tetrahedral, and hydrogen-linear. On the local structures, the hydrogen is linear, the carbon appears linear, and the nitrogen appears to be linear as well.

The Lewis structure of the covalent compound that contains one nitrogen atom, one hydrogen atom, and one carbon atom can be determined by following the octet rule. Nitrogen has five valence electrons, hydrogen has one, and carbon has four. The Lewis structure would look like:

/ \

H C

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A closed container is filled with oxygen. the pressure in the container is 225 kpa . what is the pressure in millimeters of mercury?

Answers

that kilo-pascal is equivalent to 1678. 64 millimeters of mercury pressure

What condition is often confused with the early stages of carbon monoxide poisoning boat ed?

Answers

Early stages of carbon monoxide poisoning is often confused with seasickness or intoxication.

This is so because some symptons of carbon monoxide (CO gas) poisoning are: irritated eyes, headache, nause, weakness and dizziness. As you can see those symptons are common to seasickness and intoxitation.

Carbon monoxide (CO gas) is colorless and odorless, so it may be difficult to detect the exposure to it before having some symptons of CO poisoning, but it is serious and can result in death. The victim shall be conducted to an open place promptly to receive fresh air and carried to a hospital to receive treatment urgently.

Are molecules packed most tightly together in a solid, liquid, gas, or plasma

Answers

SOLID. I hope this is right !!!!!!!!!

O2 + ch4 co2 + h2o what would be the coefficient of the diatomic oxygen molecule in the balanced reaction?
a. 1
b. 2
c. 4
d. 6

Answers

2 is the coefficient.

Answer:

The coefficient of the diatomic oxygen has to be 2.

Explanation:

The balanced reaction should be like this: [tex]2O_{2} + CH_{4} = CO_{2} + 2H_{2}O[/tex]

So, as you can see, balance mean that molecules in the reaction has to be equal, the amount of element involved has to be the same, due to the Conservation of the Mass Law.

So, Hydrogen and Oxygen are not balanced in the given expression, that's why we need to add those coefficients.

Consider the incomplete reaction below.

NaOH + X mc005-1.jpg NaCH3COO + H2O

What is X in this reaction?
NH4OH
H3PO4
H2CO3
CH3COOH

Answers

First, we can see that the output is a salt and water which means that the reactants were an acid and a base. Since the given reactant is a base, thus, NH4OH is excluded as it is also a base.

Now, examining the outputs of the reactions, we will find that they are composed mainly of sodium, hydrogen, oxygen and carbon. This excludes H3PO4 as it contains phosphorus.

The last step is to compare between the number of moles of each element in the output with those in the input. The output has 1 sodium mole, 2 carbon moles, 5 hydrogen moles and 3 oxygen moles.
The given input (NaOH) has 1 sodium, 1 oxygen and 1 hydrogen moles. Therefore, the other input (reactant) should have 2 carbon, 4 hydrogen and 2 oxygen moles.

Based on this, the right solution is CH3COOH.

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is kc=2×1011 this means that the reaction mixture at equilibrium is likely to consist of

Answers

At equilibrium it will consist of mostly products.

Final answer:

The equilibrium constant (Kc) of 2×10¹¹ndicates that at equilibrium, the concentration of carbon dioxide will be relatively high, while the concentrations of carbon monoxide and oxygen will be low.

Explanation:

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is Kc = 2×10¹¹. The equilibrium constant expression for this reaction is given by:

Kc = [CO₂] / ([CO]²[O₂]).

Based on the equilibrium constant value of 2×10¹¹, the reaction mixture at equilibrium is likely to consist of a relatively high concentration of carbon dioxide and low concentrations of carbon monoxide and oxygen.

[07.02]what is the salt formed when magnesium hydroxide reacts with hydrochloric acid?

Answers

The balanced equation for the reaction is:

Mg(OH)2+ 2 HCl -------> MgCl2 + 2 H2O

So, when magnesium hydroxide (Mg(OH)2) reacts with hydrochloric acid (HCl), magnesium chloride salt is formed.

the atomic number of boron is 5. what does this tell you about an atom of boron?

Answers

it has 5 atoms and the amount of protons and electrons it has.

Boron is 5 in the periodic table of elements and the mass is rounded up 10 11. If the atomic number of boron is 5, that means that there would be 5 protons and 5 electrons.

The mole fraction of hcl in a solution prepared by dissolving 5.5 g of hcl in 200 g of c2h6o is ________. the density of the solution is 0.79 g/ml.

Answers

Final answer:

To find the mole fraction of HCl in the solution, calculate the number of moles of HCl and C2H6O. Then, divide the moles of HCl by the total moles of all components in the solution.

Explanation:

To find the mole fraction of HCl in the solution, we first need to calculate the number of moles of HCl and C2H6O in the solution. The mole fraction of a component is defined as the moles of that component divided by the total moles of all components in the solution.

First, calculate the number of moles of HCl using its mass and molar mass:

Moles of HCl = mass / molar mass = 5.5 g / 36.461 g/mol = 0.151 mol

Next, calculate the number of moles of C2H6O using its mass and molar mass:

Moles of C2H6O = mass / molar mass = 200 g / 46.07 g/mol = 4.342 mol

Finally, calculate the mole fraction of HCl:

Mole fraction of HCl = Moles of HCl / (Moles of HCl + Moles of C2H6O) = 0.151 mol / (0.151 mol + 4.342 mol) = 0.0334

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How many sublevels are used with elements on the periodic table in energy level 5? (hint: when filling orbitals how many sublevels will have the designation of 5?)?

Answers

In Bohr's Atomic model, he says that the electrons are orbiting around the nucleus in orbitals of a specific energy level. The nearer the orbital is to the nucleus, the stronger it is. The energy level increases from 1, 2, 3, 4, 5, 6, and 7 being the least strongest. In every orbital, there is a subshell denotes as the s, p, d and f subshell. They differ in shape and also energy level. For example, in energy level 3, 3p is greater than 3s.

The best guide to these energy levels is the periodic table. As you can see in the picture, there are 4 subshells or sublevels that are assigned in the 5th energy level.

For energy level 5, there are five sublevels (s, p, d, f, and g).

In the periodic table, the energy level of an element is represented by the principal quantum number (n). Energy level 5 corresponds to the principal quantum number (n = 5). The sublevels within an energy level are represented by the azimuthal quantum number (l). The possible values of l range from 0 to (n - 1).

Therefore, for energy level 5 (n = 5), the possible values of l would be 0, 1, 2, 3, and 4.

Each value of l corresponds to a different sublevel designation:

l = 0: s-sublevel

l = 1: p-sublevel

l = 2: d-sublevel

l = 3: f-sublevel

l = 4: g-sublevel

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What is the complete ionic equation for the reaction of hydrochloric acid with potassium hydroxide? h+ + cl- + k+ + oh- → 2h+ + o2- + k+ + cl- h+ + cl- + k+ + oh- → h2o + k+ + cl- h+ + oh- → h2o none of the above 2h+ +2cl- + k2+ + 2oh- → h2o + k2+ +2 cl-?

Answers

H⁺ + Cl⁻ + K⁺ + OH⁻ → H₂O + K⁺ + Cl⁻

A solution of sucrose in water has a boiling point that is _____ 100°C.

Answers

A solution of sucrose in water has a boiling point that is HIGHER THAN 100 DEGREE CELCIUS. Impurities in water usually raise the boiling point of water making the water to boil at an higher temperature than 100 degree Celsius. The raise in the boiling point of water depends on the concentration of sucrose that is added to the water.

Answer:

greater than

Explanation:

just took it and yes i know someone already answered but i figred this would be quicker!!!!!!

Which part of making a solution always releases energy?
a. separating the solvent particles from one another
b. mixing the solute and solvent particles
c. separating the solute particles from one another
d. the overall change in forming the solution

Answers

Final answer:

Energy is released in the making of a solution during the process of mixing the solute and solvent particles, characterizing it as an exothermic process.

Explanation:

In the process of making a solution, specifically in Chemistry, energy is always released when mixing the solute and solvent particles. This process is also referred to as the exothermic process. In an exothermic process, the system (i.e., the solute and solvent) releases energy to its surroundings.

Think about when you dissolve salt in water. The salt particles, or solute, disperse among the water particles, or solvent, thus forming a solution. In this process, heat is often produced and released to the environment, signifying that energy is released during the dissolving process.

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Which of the following describes an element that is reduced in a reaction? It acts in the reactant that is the reducing agent. It has a decrease in its oxidation number. Cd yields Cd2+ + 2e− Zn + Cu2+ yields Zn2+ + Cu

Answers

It has a decrease in oxidation number

The process of reduction is when the oxidation number of a chemical specie is lowered, or when the specie gains electrons. A chemical specie undergoing reduction will act as an oxidizing agent, because it will oxidize the other reactant by itself getting reduced.

The fe2+(aq) solution described in part a was produced by dissolving 4.05 g of ore in acid. what was the percentage of fe by mass in this ore sample?

Answers

Percentage by mass is the amount in mass of a component in a mixture per 100 unit of mass of the total mixture. Percentage by mass is the same as %w/w. In order to determine this value, we need to know the mass of the substance in question and the total mass of the sample. In this case, we have to know the mass of Fe by doing certain calculations. Then, we divide this value by the total mass given of the ore, 4.05 g and multiply by 100%. It should be expressed as follows:

Percent by mass = mass of Fe in ore / 4.05 g ore sample x 100

However, the question is lacking some information so we cannot really specify the answer.

Answer:

We can't solve this problem with that data.

Explanation:

Hi! Let's solve this!

To calculate the mass percentage, use (mass of Fe / total mass of ore) * 100

In this case we have the mass of Faith but the exercise does not have enough information to calculate the percentage.

We can't solve this problem with that data.

A carbon atom is most likely to form what kind of bond(s) with other atoms? ionic bonds, covalent bonds, and hydrogen bonds covalent ionic hydrogen covalent bonds and hydrogen bonds

Answers

Answer: A carbon atom is most likely to form covalent bond(s) with other atoms.

Explanation:

Carbon atom is a group 14 element and its atomic number is 6. So, electronic distribution of carbon is 2, 4.

That is, it contains only 4 valence electrons. So, in order to attain stability it always needs to gain 4 more electrons by sharing its valence electrons with other atom.

Since, compounds formed due to sharing of electrons are known as covalent compounds.

Therefore, we can conclude that a carbon atom will always form covalent bond with other atoms.

A carbon atom is most likely to form covalent kind of bond with atoms. Therefore, the correct option is option B.

Two atoms sharing electron pairs form a type of chemical bond known as a covalent bond. Atoms in a molecule are joined by a powerful bond. In covalent bonds, electrons are often shared between nonmetal atoms in order to create a stable electron configuration. The two atoms are attracted to one another due to their common electron pair, which keeps them together in a molecule. The formation and stabilisation of molecules like water and methane depend heavily on covalent bonds.

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What is the ph of a 0.0075 m concentration of hydrochloric acid hcl? 0.50 1.1 2.1 3.2?

Answers

The chemical formula for the hydrochloric acid is HCl. The concentration of H+ in the solution is also equal to the concentration of the compound.

concentration of H+ = 0.0075M

The pH is calculated through the equation,

pH = -log[H+]
where [H+] is the concentration.

Substituting the known values,

pH = -log(0.0075M) = 2.12

Thus, the pH of the given hydrochloric acid is 2.1. The answer is the third choice.

Final answer:

The pH of a 0.0075 M concentration of hydrochloric acid HCl equals 2.1, calculated using the formula pH = -log[H3O+].

Explanation:

The pH of a solution can be determined using the formula pH = -log[H3O+]. In the case of a 0.0075 M concentration of hydrochloric acid (HCl), HCl is a strong acid and so it will ionize completely in water to form H+ (or H3O+) and Cl- ions. Since the concentration of H+ ions equals the initial concentration of the acid, we have [H3O+] = 0.0075 M. Applying the formula, we would find the pH = -log(0.0075) which equals roughly 2.1. This means that the pH of 0.0075 M HCl is 2.1.

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why is a chemical indicator added to the flask in which a titration will occur?

Answers

I would think C. To neutralize the acid before adding the base. I hope this helps love! <3

Answer:

Explanation:

Given that 4 nh3 + 5 o2 → 4 no + 6 h2o, when 4.50 mol of h2o are formed, the amount of no formed is 3.00 mol.

Answers

Final answer:

In the chemical reaction of NH3 with O2 that produces NO and H2O, the stoichiometric ratios are used to determine that 4.5 moles of H2O production results in the formation of 3 moles of NO.

Explanation:

The question is referring to a chemical reaction, specifically a stoichiometric equation. The equation shows the reaction between ammonia (NH3) and oxygen (O2) to produce nitrogen monoxide (NO) and water (H2O).

According to the stoichiometric coefficients, which are the numbers in front of the molecules, for every 6 moles of water (H2O) formed, 4 moles of nitrogen monoxide (NO) are produced. To find how much NO is produced when only 4.5 moles of H2O are formed, we need to set up a proportion: 4 NO/6 H2O = x (moles of NO)/4.5 H2O. Solving for x gives us 3 moles of NO.

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A certain compound is made up of one phosphorus (P) atom, three chlorine (Cl) atoms, and one oxygen (O) atom. What is the chemical formula of this compound?

Answers

POCl3 is the correct way to write the chemical formula for this compound

The chemical formula of that compound is POCl₃ and Its chemical name is phosphoryl chloride.

What is phosphoryl chloride?

It is a chemical compound and its formula is POCl₃. It is manufactured industrially on a large scale from phosphorus trichloride and oxygen. It is a colorless liquid and has a pungent smell, Its molar mass is 153.33 grams per mole, its melting and boiling points are 274.4 K and 378.9 K respectively, it is soluble in water, and its molecular shape is tetrahedral. It is a reducing agent.

It is used in the making of semiconductors, plasticizers, hydraulic fluids, organophosphorus, and pesticides, and it is widely used as a chlorinating agent and dehydrating agent in laboratories.

Hence, the chemical formula of phosphoryl chloride is POCl₃.

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