Glossary

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common-ion effect

Subject: 

  • Physical Sciences

adding aqueous HCl to a saturated solution of sodium ions and chloride ions to cause the precipitation of NaCl(s). this is an example of what we describe as the common ion effect.

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the theory whereby molecules undergo effective collisions to form new molecules.

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a chemical reaction between an acid and a base to form salt and water. They have opposite...

precipitation reaction
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a chemical reaction in which a solid product forms from aqueous (aq) reactants.

solution
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a homogeneous mixture formed when a substance (solute) is dissolved in another substance (...

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Once your teenager has completed practise exam papers, go over the areas where they struggle. Get a study guide to help you and your student if you need help with a particular section.

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Exam practice is essential. Make sure your student has access to practice exam papers for the subjects they take. Make sure the exam papers relate to the correct version of the curriculum.

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Studying should be active. Your child should be making notes, working through examples, doing practice exam papers and testing herself on the sections she is studying.

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Formulae sheets or key concept sheets are useful for quick revision. Get your teenager to stick them on the wall in their room. The more they look at the formulae and key concepts, the more likely...

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Different study methods work for different students. Find out what works for your child so you understand how you can support him or her.

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