chem- acids and alkalies 0.0 / 5 ? ChemistryAcids, bases and saltsGCSEAQA Created by: leader748282918Created on: 23-06-19 19:18 What ph are acids A ph that is less than 7 1 of 16 what ph are alkalis A ph that is more than 7 2 of 16 What colour is neutral on the ph scale green 3 of 16 equation for metal + an acid Metal + acid -> Salt + hydrogen 4 of 16 equation for metal oxide + an acid Metal oxide + acid -> Salt + water 5 of 16 equation for metal hydroxide + acid Metal hydroxide + acid -> Salt + water 6 of 16 equation for metal carbonate + acid Metal carbonte + acid -> Salt + water + carbon dioxide 7 of 16 alkali + soluble salts react to make? An Insoluble salt 8 of 16 Observation from reacting barium chloride Silver/cloudy precipitate 9 of 16 Observation from reacting silver nitrate Muddy brown precipitate 10 of 16 Observation from reacting Iron (III) chloride Orange/brown precipitate 11 of 16 Observation from reacting Magnesium sulfate Silver/cloudy precipitate 12 of 16 Observation from reacting sodium chloride No colour change 13 of 16 What is a base? A base is any substance that reacts with an acid to form a salt and water only 14 of 16 What are bases that are soluble in water called? Alkalis 15 of 16 What is a neutralisation reaction? A reaction between an acid and a base 16 of 16
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