CHEMISTRY HIGH SCHOOL

39 Which formula represents a molecule with the most polar bond?(1) CO (3) HI
(2) NO (4) HCl

Answers

Answer 1
Answer:

Answer: (1) CO

Explanation: A molecule is said to be polar when it has atoms with different electronegativities. The more is the difference in electronegativity, the more polar is the bond.

Electronegativity of carbon and oxygen are 2.5 and 3.5 respectively. Thus difference is (3.5-2.5)=1.0.

Electronegativity of hydrogen and Iodine are 2.1 and 2.7 respectively. Thus difference is (2.7-2.1)=0.6.

Electronegativity of nitrogen and oxygen are 3.0 and 3.5 respectively. Thus difference is (3.5-3.0)=0.5.

Electronegativity of hydrogen and chlorine are 2.1 and 3.0 respectively. Thus difference is (3.0-2.1)=0.9.

Thus as the highest difference of electronegativity is among carbon and oxygen, CO is the most polar.
Answer 2
Answer:

Which formula represents a molecule with the most polar bond? (1) CO (3) HI (2) NO (4) HCl

The formula that represents a molecule with the most polar bond is the HCl, hydrochloric acid. The answer is number 4.

Related Questions

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What kind of atmosphere does a gas giant have?
In order for a plant to complete photosynthesis, all of the following need to be present except:Oxygen Sunlight Water Carbon Dioxide
The electron configuration 1sÆ 2sÆ2pÒ 3sÆ3pÒ represents which noble gas?

Determine the mass of 5.20 moles of C6H12 (gram-formula mass = 84.2 grams/mole).

Answers

Hello!

Determine the mass of 5.20 moles of C6H12 (gram-formula mass = 84.2 grams/mole).

We have the following data:

m (mass) = ? 

n (number of moles) = 5.20 moles

MM (Molar mass of C6H12) ≈ 84.2 g/mol

Now, let's find the mass, knowing that:

n = (m)/(MM)

5.20\:\:\diagup\!\!\!\!\!\!\!mol = (m)/(84.2\:g/\diagup\!\!\!\!\!\!\!mol)

m = 5.20*84.2

\boxed{\boxed{m = 437.84\:g}}\end{array}}\qquad\checkmark

_______________________

I Hope this helps, greetings ... Dexteright02! =)
Molar mass C₆H₁₂ = 84.2 g/mol

1 mole ---------- 84.2 g
5.20 moles ---- ?

Mass C₆H₁₂ = 5.20 * 84.2 / 1

Mass = 437.84 /1

= 437.84 g

hope this helps!

How many grams of hydrogen peroxide (H2O2) must be added to 1,500 mL of water to produce a concentration of 1.33 m (molal solution)? (Recall that the density of water is 1.0 gram/mL.)

Answers

Given:

1,500 mL of water

1.33 m (molal solution

 

Required:

grams of hydrogen peroxide (H2O2

 

solution:

1.33 molal = 1.33 m = 1.33 moles H2O2/kg water

 

1 gram/liter of water (1 liter/1000 mL) (1500mL)(1 kg/1000g) = 0.0015 kg water

1.33 moles H2O2/kg water (0.0015 kg water) = 0.001995 moles H2O2

 

Molar mass of H2O2 = 34 g/mol

 

0.001995 moles H2O2 (34 g/mol) = 0.068 grams H2O2

What is Neons group and periodic number?

Answers

Its a noble gas. Its group number is 18 period number is 2

Answer:Hello,

Neon is a noble gas. It is located Group 18 and the oxidation number is 10.

I hoped it helped have a nice day!

What is the volume of a tank of nitrogen if it contains 17 moles of nitrogen at 34 C under 12,000 Pa?

Answers

Answer: 3571 L

Explanation:

According to the ideal gas equation:'

PV=nRT

P = Pressure of the gas = 12000 Pa = 0.12 atm    1Pa=9.9* 10^(-6)atm

V= Volume of the gas = volume of tank = ?

T= Temperature of the gas = 34°C = 307 K    0^0C=273K  

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas= 17

V=(nRT)/(P)=(17* 0.0821* 307)/(0.12)=3571 L

Therefore Volume of tank is 3571 Liters.

If the atomic weight of nitrogen is 14.01, what is the mass of the nitrogen atoms in one mole of cadmium nitrate, Cd(NOÀ)¿?

Answers

2x14.01 =28.02 
ans is B

Which of the following is not a state of matter?A. solid
B. liquid
C. water
D. plasma

Answers

Answer: Option (C) is the correct answer.

Explanation:

Solid and liquid are the states of matter. Plasma is also a state of matter where a number of electrons move freely around the nucleus of an atom.

Whereas water is a liquid itself and liquid is a state of matter but water is not a state of matter.

Therefore, we can conclude that water is not a state of matter.

\boxed{{\text{C}}{\text{. Water}}}  is not a state of matter.

Further Explanation:

Matter:

Anything that acquires space and has mass is termed as matter. It is made up of atoms. These atoms can be bonded so strongly or can be far apart from each other. The states of matter can be classified on the basis of features that are visible or can be felt.

States of matter:

1. Solid

It has a definite shape and volume. These are generally hard and have a regular arrangement of its constituent particles. These can be amorphous or crystalline. The intermolecular forces in the solids are very strong and thus the motion of particles in solid is almost negligible. Rock, wood, sugar, and diamond are examples of solids.

2. Liquid

It has a definite volume but can have the shape of any container in which it is placed. The intermolecular forces in the liquids are weaker than that in solids and thus the motion of particles in liquids is more as compared to solids. These have the property to flow. Water, mercury and bromine are examples of liquids.

3. Gas

It has neither a definite shape nor a definite volume. These are highly compressible and have an irregular or disordered arrangement of its constituent particles. The intermolecular forces in the gases are the weakest and thus the motion of particles in a gas is very high. Oxygen, hydrogen and carbon dioxide are examples of gases.

4. Plasma

It has neither a definite volume nor a definite volume. It is present in ionized gases but its uniqueness differentiates it from gases. Plasma contains free charges that make it conductive. Stars and neon signs are examples of plasma.

So solid, liquid and plasma are the states of matter. But water is an example of liquid and therefore an example of a state of matter. Therefore water is not a state of matter.

Learn more:

1. The subatomic particle with the least mass: brainly.com/question/2224691

2. Bohr’s model of the atom: brainly.com/question/2965079

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Matter in our surroundings

Keywords: state of matter, solid, liquid, water, plasma, matter, bromine, hydrogen, diamond, volume, shape, hard, flow, regular arrangement, constituent particles,

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