Balancing Equations

Front

What does the arrow in a chemical equation represent?

Back

Yields

Front

What is a coefficient in a chemical equation?

Back

The large number to the left of a formula.

Front

How many atoms of aluminum are in the equation: 4Al + 3O2 --> 2Al2O3?

Back

4

Front

Is the equation balanced? 2H2O + O2 --> 4MgO + 3Fe

Back

No

Front

What is the relationship between the total mass of reactants and products in a chemical reaction?

Back

The mass is the same.

Front

What are reactants in a chemical equation?

Back

Substances that undergo a chemical change.

Front

What are products in a chemical equation?

Back

Substances formed as a result of a chemical reaction.

Front

What does it mean for a chemical equation to be balanced?

Back

The number of atoms for each element is the same on both sides.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.