1. Writing Chemical Equations

2. Writing Word Equations
Using your naming rules you can write chemical equations using the names of compounds.
Example:
NaCl + CaO  CaCl Na2 O
Sodium chloride + calcium oxide  calcium chloride + sodium oxide

3. More Examples H2O2  H2 + O2 dihydrogen dioxide  hydrogen + oxygen
Mg + AlCl3  Al + MgCl2
magnesium + aluminum chloride  aluminum + magnesium chloride

4. HOBrFINCl
Are elements that when you write them by themselves get a subscript of 2. They are the ONLY ones that get subscripts – all others are just 1. H2 O2
Br2 F2 I2 N2
Cl2

5. Let’s go the other way: Word to Chemical
When you are giving a word equation you must use your naming rules to come up with the chemical equations.
Sodium + water  hydrogen and sodium oxide
Na + H2O  H2 + Na2O
Nitrogen + oxygen  dinitrogen trioxide
N O2  N2O3

6. Today’s tasks
Equations Worksheet