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Figure 8 shows part of the reactivity series of metals - Edexcel - GCSE Chemistry Combined Science - Question 6 - 2023 - Paper 1

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Figure 8 shows part of the reactivity series of metals. calcium magnesium aluminium zinc iron copper silver gold increasing reactivity Figure 8 ... show full transcript

Worked Solution & Example Answer:Figure 8 shows part of the reactivity series of metals - Edexcel - GCSE Chemistry Combined Science - Question 6 - 2023 - Paper 1

Step 1

Which metal reacts when added to cold water?

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Answer

The metal that reacts when added to cold water is A) calcium. Calcium is situated high on the reactivity series and readily reacts with cold water to produce hydrogen gas and calcium hydroxide.

Step 2

A student investigates the reactivity of four different metals.

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Answer

For the observations of the metals:

  • Magnesium: Bubbles produced at a steady rate, indicating the release of hydrogen gas, and may feel warm due to an exothermic reaction.
  • Zinc: The test tube feels slightly warm, which suggests zinc is reacting but at a slower rate compared to magnesium since it is lower in reactivity.
  • Iron: No observable reaction indicated.
  • Copper: No reaction occurs as copper is less reactive than zinc and does not displace hydrogen from the acid.

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