Identify the substances that are oxidised and the substances which are reduced in the following reactions.(i) 4Na(s) + O2(g) → 2Na2O(s)(ii) CuO (s) + H2(g) → Cu (s) + H2O(l)Answer:(i) Substances oxidised is Na as it gains oxygen and oxygen is reduced.(ii) Substances reduced is Cu as hydrogen is oxidised as it gains oxygen.

Identify the substances that is oxidized and the substances that is reduced in thefollowing reactions:CuO(s) + H2(g) Cu(s) + H2O(l)(a) H2, CuO (b) H2, H2O(c) H2, Cu (d) Cu, H2

For the following reaction, identify the element that was oxidized, the element that was reduced, and the oxidizing agent. Give an explanation for each answer.

For the following reaction, which chemical is behaving as an oxidising agent and which chemical is behaving as a reducing agent?                CuO + Mg → MgO + CuOxidising agent Reducing agentA CuO MgB MgO CuC CuO MgOD Mg Cu

Consider the following reaction.→+2Nas  Cu2+aq + 2Na+aq  CusPart 1 of 4Which species is being oxidized? Select the single best answer.Na+Cu2+NaCuPart 2 of 4Which species is being reduced? Select the single best answer.Na+CuCu2+Na

Consider the following equation representing an oxidation reduction reaction: Zn(s) + CuSO4(aq) →→ ZnSO4(aq) + Cu(s), Which statement is true about this reaction?Question 21Answera.Cu is oxidizedb.Oxygen is reducedc.Zn is oxidizedd.S is reduced