# 6CO2 + 6H2O → C6H12O6 + 4O2

How many molecules of carbon dioxide are involved in this reaction?

How many molecules of sugar are produced in this reaction?

How many atoms of carbon are on the left hand side of this equation?

How many atoms of carbon are on the right hand side of this equation?

Is the carbon balanced?

How many atoms of hydrogen are on the left hand side of this equation?

How many atoms of hydrogen are on the right hand side of this equation?

Is the hydrogen balanced?

How many atoms of oxygen are on the left hand side of this equation?

How many atoms of oxygen are on the right hand side of this equation?

Is the oxygen balanced?

Can you change one number above to balance the chemical equation?