Reactions of metals with water
1 mark · NormalWhich observation is typical when lithium is added to cold water?
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Correct option: The metal floats, fizzes, and moves slowly on the surface.
Common mistakes: Choosing lilac flame (which is potassium); Choosing yellow solid (irrelevant for lithium)
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Marking points
A1 · 1 mark · Correct choice: The metal floats, fizzes, and moves slowly on the surface.
Worked solution
Lithium floats on the water, fizzes as hydrogen is produced, and moves slowly across the surface.