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Write balanced chemical equations for th...

Write balanced chemical equations for the reactions taking place when
a Zinc carbonate is calcinated
b. Zinc sulphate is roasted.
c. Zinc oxide is reduced to Zinc
d. Cinnabar is heated in air.
e. Manganese dioxide is heated with aluminium powder.

Text Solution

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a. `ZnCO_(3)overset(Delta)(to)ZnO+CO_(2)`
b. `2ZnS+3O_(2)overset(Delta)(to)2ZnO+2SO_(2)`
c. `ZnO+Coverset(Delta)(to)Zn+CO`
d. `2HgS+3O_(2)to2HgO+2SO_(2)`
e. `3MnO_(2)+4Al to 2Al_(2)O_(3)+3Mn+` heat.
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