Question

Extra Questions:
1. Complete and balance the following equations:
(a) NaOH
+
→ Na2SO4 + H2O
(b) Ca(OH)2 +
→ CaCO3 + H2O
2.
In the following reaction between lead sulphide and hydrogen peroxide.
PbS (s) + 4 H2O (aq) --- PbSO4(s) + 4 H2O (1)
i) Which substance is reduced?
ii) Which substance is oxidised?
3.Balance the following equation :
(a) Na + 02 - Na2O
(b) H2O2 - > H2O + O2
(c) Mg(OH)2 + HCI — MgCl2 + H2O
(d) Fe +O2 — Fe2O3
(e) Al(OH)3 — Al2O3 + H2O
(f) NH3 + CuO — → Cu + N2 + H2O​

Answer 1

Answer:

I don't know the answer sooooooooooo sorry