Chemistry Midterm Review (Units 1-3)

Front

What is the Law of Conservation of Mass?

Back

Mass is never created or destroyed in a chemical reaction.

Front

What state of matter is characterized by a definite shape and volume?

Back

Solid

Front

What state of matter has a definite volume but takes the shape of its container?

Back

Liquid

Front

What state of matter has no definite shape or volume?

Back

Gas

Front

What is the formula for calculating the volume of a rectangular prism?

Back

Volume = length × width × height.

Front

What is the volume of an object that measures 5 cm × 5 cm × 5 cm?

Back

125 cm³.

Front

What does it mean for a substance to be in a solid state?

Back

The particles are closely packed together and vibrate in place.

Front

What does it mean for a substance to be in a liquid state?

Back

The particles are close together but can move past one another.

Front

What does it mean for a substance to be in a gaseous state?

Back

The particles are far apart and move freely.

Front

What is the significance of the phase changes in matter?

Back

Phase changes involve energy transfer and changes in particle arrangement.