For the following redox reactions, determine what is being oxidizedand what is being reduced. Then indicatethe oxidizing agent and the reducing agentfor each reaction. a)  Zn(s)+ CuCl2(aq) - ZnCl2(aq)+ Cu(s)

In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. name of the element oxidized: 3Ag + Cr³+→→→→Cr + 3Ag+ formula of the oxidizing agent: name of the element reduced: formula of the reducing agent:

Balance the following redox reaction in basic solution. N₂H4(aq) + Br₂(1) N₂(g) + Br (aq) N₂H₁ (aq) + Br₂ (1) N₂(g) + Br (aq) ロ→ロ e X Ś

In the balanced redox reaction: 2 Cu(s) + S(s) > Cu 2S(s); how many electrons are gained or lost by each copper atom?