*predict the products & write the balanced equation including physical states, if no reaction give reasons why *classify the reaction type.?

Question

12. Barium metal is added to water.

13. Silver metal is added to perchloric acid.

14. Liquid benzyl alcohol (C7H8O) burns.

15. A solution of magnesium sulfite is added to perchloric acid.

Answer 1

12. Barium metal is added to water.

Ba(s) + 2H₂O(l) ==> Ba(OH)₂ +H₂(g) ... single replacement

13. Silver metal is added to perchloric acid.

2Ag(s) + 2HClO4(aq) ==> 2AgClO4(aq) + H2(g) ... single replacement

14. Liquid benzyl alcohol (C7H8O) burns.

2C₇H₈O(l) + 17O₂ ==> 14CO₂(g) + 8H₂O(g) ... combustion

15. A solution of magnesium sulfite is added to perchloric acid.

MgSO₃(aq) + 2HClO₄(aq) ==> Mg(ClO₄)₂(aq) + H₂SO₃(aq) ... double replacement