Salts - chemistry revision 0.0 / 5 ? ChemistryAcids, bases and saltsGCSEAQA Created by: jemstarsCreated on: 19-03-17 10:20 What happens in a neutralisation reaction between an acid and an alkali? Hydrogen ions (H+) react with hydroxide ions (OH-)to form water. 1 of 8 What is the formula for the reaction between acids and alkalis? H+(aq) + OH-(aq) = H20 2 of 8 What do all alkalis contain? Hydroxide ions, OH- ion. 3 of 8 Why do crystals begin to form when the solution of salt and water begins to cool down? The salt is less soluble at lower temperatures and so cannot all stay dissolved. 4 of 8 What does the symbol aq stand for? Aqueous which means dissolved in water. 5 of 8 Define the term soluble. A substance that can be dissolved, especially in water. 6 of 8 What is a saturated solution? A solution where no more of the solute can dissolve at room temperature. 7 of 8 Why can't copper sulfate be formed when copper reacts with hydrochloric acid? Cu is lower down in the reactivity series than H and so cannot displace hydrogen from HCl. 8 of 8
Comments
No comments have yet been made