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IGCSE O Level Chemistry Study Material: Practice Test 23 (Chapter 3)
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Formula of Zinc Chloride (ZnCl2) indicates that charge on Zinc ion (Zn+2) is
Valency of iron (Fe) is
Consider Calcium Carbonate (CaCO3) and Hydrochloric Acid (HCl) as reactants, molecules of Hydrochloric Acid (HCl) required to balance the equation will be
State symbol indicate the
Butane (C4H10) molecular weight is
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