(i) What do the following symbols / formulae stand for: (a) 2O (b) O2 (c) O3 (d) H2O
(i) What do the following symbols / formulae stand for:
(a) 2O (b) O2 (c) O3 (d) H2O
(ii) Give the chemical formula of the following compounds:
(a) Potassium carbonate (b) Calcium chloride
(iii) Calculate the formula unit mass of Al2(SO4)3.
(Given: Atomic mass of Al = 27 u, S = 32 u, O = 16 u)
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