Chemistry 5070 · O Level · Ion and ionic bonds

Ion and ionic bonds — practice question

Hydrated zinc chloride takes the form of a white solid.
(a)[1]

State what the term hydrated means.

(b)[2]

A small volume of aqueous zinc chloride is treated with aqueous ammonia dropwise until the ammonia is in excess. Describe the observations during this addition.

(c)[1]

Describe the observations when aqueous silver nitrate is mixed with aqueous zinc chloride.

(d)[4]

Complete Table 9.1 with the missing entries.

(e)[1]

Explain why aqueous zinc chloride conducts electricity, whereas solid zinc chloride does not.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: (chemically) bonded to water

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