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09-01-2024
Chemistry

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Calamine lotion is used to treat itching. The main ingredients are two metal oxides. One of the metal oxides has a relative formula mass (M+) of 81.
The formula of this metal oxide is MO (M is not the correct symbol for the metal)
The relative atomic mass (Ar) of oxygen is 16.
Calculate the relative atomic mass (Ar) of metal M.

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