Unit 3 Chem

Which model represents STRONGER Intermolecular Forces?

• A

• B

In a solid to liquid mixture, an increase in temperature means...

• decrease in solubility

• increase in solubility

The ___ is the thing being dissolved.

• solvent
• solution
• solute
• suspension

If the amount of solute present in a solution is more than the maximum than can be dissolved, the solution is

• saturated solution
• unsaturated solution
• concentrated solution
• supersaturated solution

According to the reference table, what is the boiling point of ethanoic acid at 80 kPa?

• 111°C

• 100°C
• 130°C
• 90°C

MgCO₃

• Soluble

• Insoluble

In a gas to liquid mixture, an increase in temperature means...

• increase in solubility

• decrease in solubility

Which of the following is NOT a part of Kinetic Molecular Theory?

• Gas particles are in constant motion.
• Gas particles have mass and occupy space (the individual particles have volume)

• Gas particles have mass.
• Gas particles collide elastically.

You and your friend have a contest to see who can make sweet iced tea the fastest. Which of the following would NOT help you win?

• Cooling the water

• Using smaller sugar crystals

• Heating the water

• Stirring quickly

The volume of a sample of helium is 4.5 mL at 20.0°C and 203.0 kPa. What will its volume be in the figure?

• 4.34 mL

• 3.8 mL
• 5.0 mL
• 4.0 mL