SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Balance this equation ____ HgO
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It is balanced
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2HgO
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2HgO
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I don’t know ____ Oh well!
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Explanation:
Detailed explanation-1: -The balanced equation for mercury (II) oxide: 2HgO + heat—> 2Hg + O2.
Detailed explanation-2: -Mercuric oxide (HgO) decomposes on heating to give mercury (Hg) and oxygen (O2). It is a thermal decomposition reaction and the balanced equation can be written as: 2HgO(s)→heat2Hg(l)+O2(g)
Detailed explanation-3: -It is a chemical decomposition reaction as the mercuric oxide is broken down into mercury and oxygen.
Detailed explanation-4: -Answer and Explanation: The reaction HgO→Hg+O2 H g O → H g + O 2 is a decomposition reaction. We know this reaction is a decomposition reaction because one substance is being broken down into two separate substances.
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