Chemistry

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2 February, 05:33

Galena is the ore from which elemental lead is extracted. in the first step of the extraction process, galena is heated in air to form lead (ii) oxide. 2pbs (s) + 3o2 (g)  2pbo (s) + 2so2 (g) h = - 827.4 kj what mass of galena is converted to lead oxide if 975 kj of heat are liberated

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