Reactions of Acids (AQA GCSE Chemistry): Quizzes

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The pH scale
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12 questions from this quiz

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What is the range of the pH scale?

0 to 14

What does it mean that the pH scale is logarithmic?

Each number is a 10-fold change in acidity

What pH value indicates an acidic solution?

pH less than 7

What do acidic solutions contain lots of?

H+H^+ ions

What is the pH of a neutral solution?

pH 7

Which ions are found in alkaline solutions?

OHOH^- ions

What type of results does universal indicator give?

Approximate results

How accurate are pH probe measurements?

Exact pH to 1 or 2 decimal places

What is the equation for a neutralisation reaction?

H++OHH2OH^+ + OH^- \rightarrow H_2O

What products form when an acid reacts with an alkali?

Water and a salt

What is the pH of battery acid?

pH 0

What pH must human blood maintain?

pH 7.4

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