Chemical Formulas

• give atom-to-atom and mole-to-mole ratios

• example: “H2O” means:

2 atoms H

1 atom O

2 atoms H

1 molecule H2O

1 atom O

1 molecule H2O

2 mol H

1 mol O

2 mol H

1 mol H2O

1 mol O

1 mol H2O

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