Identify the TYPE of reaction. [Summary of Reaction Types] (b) Write correct formulas and symbols for elements as products and/or reactants.
[Polyatomic Ions/Cations & Anions Handout; Activity Series]

(c) Balance the equation using correct coefficients.
[Coefficients are always whole numbers in these examples IN FRONT of a compound or element]
Each reaction type is 5 points. Each formula is 4 points each. Coefficients are 3 points each.
The arrow, any symbol, and + sign separating reactants and products total 5 points in each reaction

#1 Sodium chlorate decomposes to yield sodium chloride and oxygen gas.

#2 Iron nails react with oxygen in the atmosphere to form ferric oxide.

#3 Aluminum nails fizz in hydrochloric acid [ HCl ] to produce aluminum chloride and hydrogen gas.