When a compound X was heated, a brown gas and a black residue were produced. Give the formula of: (i) The brown gas. (ii) The black...

When a compound X was heated, a brown gas and a black residue were produced. Give the formula of:
(i) The brown gas.
(ii) The black residue.

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(a) NO₂
(b) CuO

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sharon kalunda answered the question on March 29, 2019 at 06:26

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