Chemical Changes 0.0 / 5 ? ChemistryChemical ChangesGCSEAll boards Created by: Ariadne2002Created on: 05-04-17 17:46 What colou would universal indicator turn to if you added lemon juice? Red-orange 1 of 13 The pHof a solution is 8.Is the solution acid or alkaline? Alkaline 2 of 13 Write a word equation for the reaction between calcium carbonate and hydrochloric acid. Calcium carbonate + Hydrochloric acid = Calcium chloride + Water + Carbo dioxide 3 of 13 Explain why you can' collect calcium from calcium oxide by reduction with carbon. Because calcium is more reactive than carbon. 4 of 13 Complete the word equation for the reaction of sodium and water: Sodium + Water = ? + ? Sodium + Water = Sodium hydroxide + Hydrogen. 5 of 13 State wether the folowing pH values are Acidic, Alkaline or Neutral. a) 9 b) 2 c) 7 d) 6 a) Alkaline b) Acidic c) Neutral d) Acidic 6 of 13 Give the general word equation for a acid and a base. Acid + Base = Salt + Water 7 of 13 Name the products that will form when hydrochloric acid reacts whith sodium carbonate. Sodium chloride + Water + Carbon dioxide 8 of 13 Is zinc more or less reactive than iron? More reactive 9 of 13 What product forms when magnesium is oxidised by oxygen Magnesium oxide 10 of 13 State were a metal will be in the reactivity series if it can be reducted by its oxide with carbon It will be below carbon in the reactivity series. 11 of 13 What is the general word equation for the reaction of a metel and a acid Metal + Acid = Salt + Hydrogen 12 of 13 Complete the equation for the reaction of calcium with water ; Ca + ?H₂O = ? + H₂ Ca + 2H₂O = Ca(OH)₂ + H₂ 13 of 13
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