A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s) → 2 Hg(/) + O2(g) AHrxn = 181.6 k) (a) How much heat is needed to decompose 560. g of the oxide? 4.0 kJ (b) If 264 kJ of heat is absorbed, how many grams of mercury form? 4.0 g Submit Answer

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A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide.
2 HgO(s) → 2 Hg(/) + O2(g)
AHrxn = 181.6 kJ
(a) How much heat is needed to decompose 560. g of the oxide?
4.0
kJ
(b) If 264 k) of heat is absorbed, how many grams of mercury form?
4.0
Submit Answer
Transcribed Image Text:A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s) → 2 Hg(/) + O2(g) AHrxn = 181.6 kJ (a) How much heat is needed to decompose 560. g of the oxide? 4.0 kJ (b) If 264 k) of heat is absorbed, how many grams of mercury form? 4.0 Submit Answer
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