Gases

Question 1

Which image best represents the particles in liquids

Revolt · Accepted Answer

B:

Question 2

Which substance most likely has the highest boiling point?

Revolt · Accepted Answer

A: calcium chloride (CaCl2), an ionic compound

Question 3

Which substance would you most likely need to cool to the lowest temperature before it condenses?

Revolt · Accepted Answer

B: ethane (C2H6), a nonpolar covalent compound

Question 4

Which of the following set of properties is most likely for a liquid with large, attractive intermolecular forces?

Revolt · Accepted Answer

C: high melting point and high boiling point

Question 5

Water (H2O) is a liquid at room temperature. Ammonia (NH3) is a gas at room temperature. Both are polar covalent compounds. Which compound most likely has the strongest intermolecular forces?

Revolt · Accepted Answer

A: water

Question 6

Gasoline and motor oil are chemically similar. They are both mixtures of nonpolar hydrocarbons containing carbon and hydrogen atoms. However, motor oil is much more viscous than gasoline. Which substance probably has the higher average molar mass?

Revolt · Accepted Answer

B: motor oil

Question 7

A chef is using honey in a recipe. The honey is too thick to pour out of the jar. How could the chef make the honey easier to pour?

Revolt · Accepted Answer

A: heat it

Question 8

For which applications would you choose a liquid over a gas or solid?

Revolt · Accepted Answer

A: washing clothes; B: linking a brake pedal to the brake pads at the wheels of a car; E: dissolving sugar; F: painting a wall

Question 9

Water’s molar mass is 18.01 g/mol. The molar mass of methanol is 32.01 g/mol. At room temperature, water is 64% more viscous than methanol. Which substance has the stronger intermolecular attraction?

Revolt · Accepted Answer

B: water

Gases Answers

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