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30/09/2021 6:31 pm
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(a) Name two metals which are found in nature mainly in the free state (as metallic elements).
(b) Name two metals which are always found in combined states.
(c) What iron compound is present in hematite ore? Also, write its chemical formula.
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30/09/2021 6:32 pm
(a) Gold and Platinum are found in nature mainly in the free state.
(b) Sodium and Magnesium are always found in combined state.
(c) Iron (III) oxide; Fe2O3 is present in haematite ore.