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Writing Chemical Equations

what is the c...

Question

what is the chemical equation for the reaction taking place when cinnabar is heated in air?

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Solution

Mercury is produced from cinnabar (HgS) by heating it in air. The mercury vapor that is produced is distilled and cooled to form liquid mercury.
heat
HgS (s) + O2 (g) -------> Hg (g) + SO2 (g)
Cinnabar Mercury

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