Reactions of metals with water

2 marks · Normal

Name the solid products formed when:

(a)

zinc reacts with steam,

[1 mark]

(b)

iron reacts with steam.

[1 mark]

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(a) Zinc oxide (ZnO)

(b) Tri-iron tetroxide (Fe3O4)

Common mistakes: Giving incorrect oxide formulae (e.g., Zn(OH)2 instead of ZnO, FeO instead of Fe3O4)

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Marking points

A1 (a) · 1 mark · Correctly names zinc oxide (ZnO) as the product.

A2 (b) · 1 mark · Correctly names tri-iron tetroxide (Fe3O4) as the product.

Worked solution

a) Zinc reacts with steam to form zinc oxide (ZnO). (1)

b) Iron reacts with steam to form tri-iron tetroxide (Fe3O4). (1)