Writing and Classifying Chemical Reactions

1. Balance each of the following chemical equations:

a) Mg(s) + HCl(aq) ® MgCl2(aq) + H2(g)

b) NH4NO3(s) ® N2(g) + O2(g) + H2O(l)

2. Write balanced chemical equations for the following chemical reactions:

a) the reaction between sodium and nitrogen gas (N2) to form sodium nitride.

b) the reaction between oxygen gas and nitrogen oxide gas to form nitrogen dioxide gas.

c) the reaction for the combustion of ethane gas, C2H6.

d)  a molecular equation for the reaction between aqueous solutions of aluminum chloride and sodium carbonate.

3. For the reactions in Questions 1 and 2 above, classify each one as one of the following types: double displacement, single replacement, combustion, synthesis, or decomposition.

4. Which of the reactions above are oxidation-reduction reactions?

Which of the reactions above are precipitation reactions?

Which of the reactions above are acid-base reactions?