Module 2 Chemistry MCAS Review Graded Assignment

Front

What are the changes between states of matter (solids, liquids, etc.) called?

Back

Physical changes.

Front

Why are hard-boiled eggs considered a result of a chemical change?

Back

Because the eggs have different properties (smell, taste, color) before vs after.

Front

What distinguishes carbon as an element and carbon dioxide as a compound?

Back

Carbon dioxide is made of two different elements.

Front

How is a chemical change different from a physical change?

Back

A chemical change creates a new substance.

Front

What is a group of 2 or more atoms held together by chemical bonds called?

Back

Molecule.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

Can you give an example of a physical change?

Back

Melting ice into water.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

Can you give an example of a chemical change?

Back

Burning wood.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.