Chemistry Unit 0 & 1 Review

What is a molecule?

• The smallest unit of an element that displays the properties of that element.

• A type of particle made up of two or more atoms that are joined together by a chemical bond.

• Elements that bind to themselves for more stability.

• A particle that has a positive or negative charge.

Physical Properties are

• chemical changes

• are properties that can be observed without changing the matter's identity

• are properties that can be observed that change the matter into new matter with new properties

True or False. States of matter are solids, liquids, and gasses

• True

• False

The amount of matter in a given space of volume

• density

• state

• volume

• mass

What is the least dense liquid in this container?

• Honey

• vegetable oil

• lamp oil

• water

Most physical changes are easily reversible. Hint - Is it easy to melt and freeze ice?

• True

• False

In which phase of matter do atoms vibrate in place without moving?

• Liquid

• Solid

• Gas

• None of these

Which phase of matter has no definite shape or volume?

• Solid

• Liquid

• Gas

• All of the above

Which phase of matter has a definite volume and takes the shape of its container?

• Liquid

• Solid

• Gas

• None of these

Boba tea is what kind of mixture?

• Homogeneous

• Heterogeneous