Chemical Equations

Front

What does the principle of conservation of mass mean in chemical reactions?

Back

Matter is not created or destroyed.

Front

How many atoms of carbon (C) are in C6H12O6?

Back

6

Front

How do you balance the chemical equation Fe + O2 -> Fe2O3?

Back

4Fe + 3O2 -> 2Fe2O3

Front

What number should go in the blank? _ H2 + O2 -> 2 H2O

Back

2

Front

What does the number 4 represent in 4NH3?

Back

Coefficient

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

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

Front

What is the difference between a coefficient and a subscript in a chemical formula?

Back

A coefficient indicates the number of molecules, while a subscript indicates the number of atoms in a molecule.

Front

What does balancing a chemical equation ensure?

Back

It ensures that the number of atoms for each element is the same on both sides of the equation.