Write 5 equations of reactions that result in the formation of water, indicate the type of each of the reactions

1) 2H2 + O2 = 2H2O (when hydrogen interacts with oxygen, water is formed, a compound reaction);

2) GeO2 + 2H2 = Ge + 2H2O (when germanium dioxide interacts with hydrogen, germanium and water are formed, a substitution reaction);

3) SnO2 + 2H2SO4 = Sn (SO4) 2 + 2H2O (when tin dioxide reacts with sulfuric acid, tin sulfate and water are formed, exchange reaction);

4) SiH4 + 2O2 = SiO2 + 2H2O (when silane interacts with oxygen, silicon dioxide and water are formed, an exchange reaction);

5) 2Al (OH) 3 = Al2O3 + 3H2O (when heated, aluminum hydroxide decomposes into aluminum oxide and water, decomposition reaction).