Comparing concentration with strength
Quiz by Oak National Academy: GCSE Chemistry AQA Higher
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6 questions
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- Q1What is the pH scale used to measure?the colour of a solutionthe concentration of salts in a solutionthe acidity or alkalinity of a solutionthe temperature of a solution30s
- Q2What is ionisation?the process of dissolving a substance in waterthe formation of ions by gaining or losing electronsthe release of energy in a reactionthe mixing of acids and bases30s
- Q3What is the charge of a hydrogen ion?negativepositiveneutral30s
- Q4What does it mean if an acid is completely ionised in an aqueous solution?the acid has fully reacted with a baseall acid molecules dissociate into ionsthe acid stops reactingthe acid becomes neutral30s
- Q5What does a weak acid do in an aqueous solution?it becomes a strong baseit partially dissociates into ionsit completely dissociates into ionsit does not ionise30s
- Q6What is the significance of titration curves?they graph pH changes to find neutralisation pointsthey indicate changes in volumethey show the temperature change during a reactionthey track time during a reaction30s