Counting Atoms

Front

What is the process by which one or more substances change to produce one or more different substances?

Back

Chemical Reaction

Front

What type of change occurs when a glass bottle is shattered?

Back

Physical Change

Front

How many atoms of Iron are in the compound Fe2O3?

Back

2

Front

What is the best evidence that a chemical reaction occurs when coal burns?

Back

A new substance is produced

Front

What do coefficients in chemical formulas do?

Back

Multiply EVERYTHING!

Front

What is a reactant?

Back

A substance that is present at the start of a chemical reaction and is consumed during the reaction.

Front

What is a product in a chemical reaction?

Back

A substance that is produced as a result of a chemical reaction.

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in the formation of new substances, while a physical change does not.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.