Identify which of the following are the oxidation reduction reaction and find out the oxidizing agent, reducing the agent, substance being oxidized, and the substance being reduced.
1. SiCl4(l)+2Mg(s)?2MgCl2(aq)+Si(s)
2. SiCl4(l)+2H2O(l)?4HCl(aq)+SiO2(s)