Changes to Matter- Unit 2 Review

Which of the following indicate that a chemical reaction has occurred?

• the formation of gas bubbles
• a change in color
• an odor
• all of these indicate that a chemical reaction has occurred.

You are performing an experiment combining two substances in a closed container. You first pour 350 mL of substance one followed by 430 mL of substance two. A chemical reaction occurs. Choose the equation below that would best explain the total mass of the combined substances.

• 430 mL - 350 mL = 80 mL
• 350 mL x 430 mL = 780 mL
• 350 mL + 430 mL = 780 mL
• 780 mL - 430 mL = 350 mL

A ___________ produces new matter with new and different properties.

• chemical change
• physical change

The ability to burn is an example of a physical property.

• True
• False

A boiled egg in its shell weighs ____________ a raw egg in its shell.

• more than
• less than
• the same as

What would happen to the weight of an ice cube if it melted?

• It would weigh a little more.
• It would weigh a lot less.
• It would weigh the same.
• It would weigh a lot more.

Which mixture is a solution?

• muddy water
• cranberry juice
• potting soil
• milk and cereal

a type of mixture where one substance dissolves in another substance is called

• solution
• chemical reaction
• physical property
• Chemical property

characteristics that describe how a substance looks, feels, acts, and interacts with other substances

• Solution
• Mixture
• State
• Properties of Matter

the substance that can dissolve other things

• solute
• solvent