Acids, bases and salts AS Chemistry 0.0 / 5 ? ChemistryAcids, bases and saltsASOCR Created by: Florence BoydCreated on: 28-04-13 23:36 What is an acid? a species that is a proton donor 1 of 19 What is a base? a species that is a proton acceptor 2 of 19 What is an alkali? a soluble base that releases OH- ions un aqueous solution. 3 of 19 When is a salt produced? When the H+ ion of an acid is replaced by a metal ion or NH4+. 4 of 19 Explain the term anhydrous. a substance that contains no water molecules. 5 of 19 Explain the term hydrated. A crystalline compound containing water molecules. 6 of 19 What are the 3 common bases? Metal oxides, metal hydroxides and ammonia. 7 of 19 Products of the reaction of an acid and a carbonate? Water + CO2 + Salt 8 of 19 Products of the reaction of an acid and a base? Water + Salt 9 of 19 What is the oxidation number of an uncombined element? 0 10 of 19 What is the oxidation number of combined oxygen? -2 11 of 19 What is the oxidation number of combined hydrogen? +1 12 of 19 What is the oxidation number of a simple ion? The charge on the ion. 13 of 19 What is the oxidation number of combined fluorine? -1 14 of 19 What is an oxidation number? A measure of the number of electrons that an atom uses to bond with atoms of another element. 15 of 19 What is oxidation? Loss of electrons and increase in oxidation number. 16 of 19 What is reduction? Gain of electrons and a decrease in oxidation number. 17 of 19 How do metals generally form ions? By losing electrons with a gain in oxidation forming a positive ion. 18 of 19 How do non-metals generally form ions? By gaining electrons with a loss in oxidation number forming a negative ion. 19 of 19
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