Counting Atoms and Balancing Equations pt 1

Front

What does the law of conservation of matter state?

Back

Atoms are neither created nor destroyed in chemical reactions.

Front

How many oxygen atoms are in Al₂(SO₄)₃?

Back

12

Front

How many carbon atoms are in 5C₆H₁₂O₆?

Back

30

Front

Is the equation Fe + S --> FeS balanced?

Back

Yes

Front

Is the equation 2H₂ + O₂ --> 2H₂O balanced?

Back

Yes

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.

Front

What is a product?

Back

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

Front

What does it mean to balance a chemical equation?

Back

To ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What is the coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate the number of molecules.