Question

1- Identify the type of reaction and then balance the following equation:
Mg + HNO3 → Mg(NO3)2 + H2
2- Identify the type of reaction. Write the formula for the following word equation and then balance the equation:
copper I hydroxide → copper I oxide + water
3- Identify the type of reaction. Complete each of the following equations then balance each equation:
Pb(C2H3O2)4 + Ag2S →
FeSO4 + NH4OH →
H2 + Cl2 →

Answer 1

1- the chemical reactions can be classified in 6 different types: combustion, synthesis, decomposition, single displacement, double displacement, acid-base.
http://misterguch.brinkster.net/6typesofchemicalrxn.html

2- 2 CuOH -> Cu2O + H2O

3- separate the salts into cations and anions and combine one anion from the first one with the cation of the other one and vice-verse.

Answer 2

I will choose more "Single displacement". You have two reactants and two products, for a synthesis you have only one product

Answer 3

This one?
2Al2O3 → 4Al + 3O2
looks like decomposition