M4 Periodic Table: Chemical Change
Slide 14 of 35
Combination Reaction: Balancing Equation
The creation of 3 sodium atoms, which we can balance by adding three more sodium atoms to the left.
+
Giving us the balanced equation:
–4Na         +    O2 à 2Na2O
A chemical equation must be balanced so as to not contradict the law of conservation of matter.