Chemical Formulas & Counting Atoms

Decode chemical formulas and count atoms like a pro!

Vocabulary Matching Match the correct word and definition. Subscript Shows how many atoms of each type of element are in a molecule. Coefficient Shows how many molecules are present. Chemical Formula Gives information about the total number of atoms and molecules present in a solution. Element A pure substance that is made up of only one type of atom. Ex: Na Compound A substance made of at least two types of atoms. Ex: NaCl How many atoms of carbon are present in a molecule of glucose, C6H12O6? 1 6 12 24 How many atoms of oxygen are present in a molecule of glucose, C6H12O6? 1 6 12 24 How many molecules of glucose are present, C6H12O6? 1 6 12 24 How many total atoms are in a molecule of glucose, C6H12O6? 1 6 12 24 How many oxygen atoms are in Al(OH)3? 1 2 3 How many aluminum atoms are in the compound Al(OH)3? 1 2 3 How many molecules of water are in 2H2O? 1 2 3 4