by Sunday | Aug 25 | Chemistry WAEC
A. C(s) + H2O(l) → CO(g) + H2(g) B. 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) C. Zn(s) + 2HCI(aq) → ZnCI2(aq) + H2(g) D. Cu(s) + H2O(l) → CuO(s) + H2(g) E. 2AI(s) + 3H2O(l) → Al2O3(s) + 3H2(g) Correct Answer: Option C – Zn(s) + 2HCI(aq) → ZnCI2(aq) +...
by Sunday | Aug 25 | Chemistry WAEC
A. ethanol B. sulphur C. methylethanoate D. ethene E. ethane Correct Answer: Option D – ethene
by Sunday | Aug 25 | Chemistry WAEC
A. distillation B. cracking C. catalysis D. polymerization E. dehydrogenation Correct Answer: Option B – cracking
by Sunday | Aug 25 | Chemistry WAEC
A. potassium B. calcium C. sodium D. tin E. magnesium Correct Answer: Option D – tin
by Sunday | Aug 25 | Chemistry WAEC
A. Na2CO3 B. CuSO4 C. MgSO4 D. NaCI E. FeSO4 Correct Answer: Option D – NaCI
by Sunday | Aug 25 | Chemistry WAEC
The decomposition of hydrogen peroxide is represented by the equation: 2H2O(l) + O2(g) what mass of hydrogen peroxide would be required to produce 22.4dm³ of oxygen at s.t.p? (H = 1, O = 16, molar volume of a gas at s.t.p. = 22.4dm³) A. 18 g B. 34 g C. 36 g D. 64 g E....