2.1.2 Compounds, Formulae and Equations
Syllabus
Syllabus
Learners should be able to demonstrate and apply their knowledge and understanding of:
Formulae and equations
(a) the writing of formulae of ionic compounds from ionic charges, including:
(i) prediction of ionic charge from the position of an element in the Periodic Table
(ii) recall of the names and formulae for the following ions: NO3–, CO32–, SO42–, OH–, NH4+, Zn2+ and Ag+
{Note that ‘nitrate’ and ‘sulfate’ should be assumed to be NO3– and SO42–. Charges on unlisted ions will be provided.}
(b) construction of balanced chemical equations (including ionic equations), including state symbols, for reactions studied and for unfamiliar reactions given appropriate information.
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