Unit 2 Review

Front

What is a liquid?

Back

A state of matter that has a fixed volume but not a fixed shape, allowing it to take the shape of its container.

Front

What is evidence of a chemical change?

Back

A situation where a new substance is formed, such as adding vinegar to baking soda, which produces foaming bubbles.

Front

What does the line segment A-B represent in a phase diagram?

Back

It represents the solid state of matter.

Front

What occurs during a chemical change?

Back

Bonds are rearranged, and a new substance is formed.

Front

What is a physical property?

Back

A characteristic of a substance that can be observed without changing its identity, such as mass.

Front

What is a chemical property?

Back

A characteristic that describes a substance's ability to undergo a chemical change, such as reactivity.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A process that involves the transformation of one or more substances into different substances.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the definition of a solid?

Back

A state of matter that has a fixed shape and volume, with particles that are closely packed together.