Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

A student examines two solids, E and F. Tests carried out on solid E Solid E is ammonium sulfate. State the expected observations. The student dissolves solid E in distilled water to make solution E. The student then splits solution E into three roughly equal parts.
(a(i))[1]

State the expected observations.

(a(ii))[1]

Identify the gas given off in (a)(i).

(b)[1]

State the expected observations.

(c)[1]

State the expected observations.

(d)[3]

Identify the three ions in solid F.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: (damp red) litmus (paper) changes to blue

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