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Chemical changes case 105 reactivity-evidence. A student uses the reactivity series to justify an observation. Which option is best? Focus on that lower means higher hydrogen ion concentration in Strong and weak acids (HT only), not on a neighbouring Unit 4.4 reaction idea.
- A.Chemical changes case 105 reactivity-evidence: Uses the relative reactivity order to predict the change for that lower means higher hydrogen ion concentration
- B.Chemical changes case 105 reactivity-evidence: Chooses the product by memorising a colour instead of the series (Strong and weak acids (HT only))
- C.Chemical changes case 105 reactivity-evidence: Says any metal can displace any other metal ion (that lower means higher hydrogen ion concentration)
- D.Chemical changes case 105 reactivity-evidence: Ignores whether the reacting substance is more or less reactive (Reactions of acids)
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