Answer the following questions:
Answer variants:
\(2Pb(NO_3)_2\) \(\xrightarrow[]{Heat}\) \(2PbO\) + \(4NO_2\) + \(O_2\)
\(CuO\) + \(2HCl\) → \(CuCl_2\) + \(2H_2O\)
\(2Al\)(s) + \(3CeCl_2\)(aq) → \(2AlCl_4\)(aq) + \(3Cu\)(s)
decomposition reaction
because sunlight energy is absorbed by plants
single displacement reaction
1. Balance the following chemical equation: \(Pb(NO_3)_2\) → \(PbO\) + \(NO_2\) + \(O_2\)
2. Why is photosynthesis considered an endothermic process?
3. On adding dilute hydrochloric acid to copper oxide powder, the solution formed is blue green. Predict the new compound formed which imparts a blue green colour to the solution.