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5 of 5 objectives have lessons · 0 studied · 0 secure
What Cambridge says you should be able to do, in our words. Codes are the topic number plus the objective’s position.
Write the formulas of ionic compounds from ionic charges and oxidation numbers (shown by a Roman numeral), including: (a) predicting ionic charge from the position of an element in the Periodic Table; (b) recalling the names and formulas of the ions NO₃⁻, CO₃²⁻, SO₄²⁻, OH⁻, NH₄⁺, Zn²⁺, Ag⁺, HCO₃⁻ and PO₄³⁻.
Taught in: The nine ions to know by heart, Predicting ion charges (and those Roman numerals), Writing ionic formulas · 19 questions
(a) Write and construct balanced equations, including ionic equations (which should not include spectator ions); (b) use appropriate state symbols in equations.
Taught in: Balancing equations and state symbols, Ionic equations: kick out the spectators · 12 questions
Define and use the terms empirical formula and molecular formula.
Taught in: Empirical vs molecular formulas, Calculating empirical formulas from data · 8 questions
Understand and use the terms anhydrous, hydrated and water of crystallisation.
Taught in: Hydrated salts and water of crystallisation · 6 questions
Calculate empirical and molecular formulas from given data.
Taught in: Formulas from combustion data, Calculating empirical formulas from data, Hydrated salts and water of crystallisation · 14 questions