AS Chemistry - Compounds, formulae and equations 0.0 / 5 ? ChemistryCompounds, formulae and equationsASOCR Created by: ambermeganjonesCreated on: 21-04-16 23:27 Define oxidation number A measure of the number of electrons an atom uses to bond to atoms of a different element 1 of 15 What are positively charged ions called? Cations 2 of 15 What are negatively charged ions called? Anions 3 of 15 Define Valency A measure of the number of electrons an atom or group of atoms uses in bonding with another species. 4 of 15 What is the formula of the ion Ammonium? NH4 + 5 of 15 What is the formula of the ion Nitrate (V)? NO3- 6 of 15 What is the formula of the ion Sulfate (VI)? SO4 2- 7 of 15 What is the formula of the ion Phosphate (V)? PO4 3- 8 of 15 What is the formula of the ion Hydroxide? OH- 9 of 15 What is the formula of the ion Carbonate? CO3 2- 10 of 15 What is the formula of the ion Hydrogen sulfate? HSO4 - 11 of 15 What is the formula of the ion Hydrogen carbonate? HCO3 - 12 of 15 In terms of solubility rules, Compounds of sodium and potassium and ammonium are..? Soluble 13 of 15 In terms of solubility rules, salts are...? Soluble 14 of 15 In terms of solubility rules, bases are...? Insoluble 15 of 15
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