Oxidising and reducing agent within a single compound (observation)

Decomposition of ammonium dichromate by heating.

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Nitrate ion (NO₃⁻)

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Colourless, odourless, lighter-than-air gas. The most common chemical element in the universe.

The reaction between aluminium and bromine (observation)

The halogens and the metals combine to produce bromides.

Face-centred cubic metal lattice

The face-centred cubic metal lattice allows the closest fit of metal atoms.

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A white, crystalline compound that breaks down when affected by light.

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A colourless, heavier-than-air gas, an intermediate in the production of nitric acid.

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One of the oxides of sulphur, forms sulphuric acid with water.

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