Question

Write chemical equations for reactions taking place when i. cinnabar is heated in air. ii. manganese dioxide is heated with aluminium powder.

Answer 1

Here is your answer my friend
1.When Cinnabar is heated in air
HgS+O2===>Hg + SO2
2.When Magnesium dioxide heated with aluminium powder
3MgO +2Al===>Al2O3+3Mg

Answer 2

Explanation:

1) when cinnabar is heated in air:

HgS + 3O2 → 2HgO→2Hg + O2

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