Answer to Question #192725 in Chemistry for Jade

Question #192725

3) 2 MgO(s)  --> 2 Mg (s) + O2(g)                    Δ

Δ

H = +72.3 kJ

a.Endothermic or exothermic? _______________________

b.Heat is released or absorbed?_______________________

c.Temperature would go up or down? ________________

d.Rewrite the equation putting the heat in as a reactant or product.


1
Expert's answer
2021-05-14T02:34:57-0400

Solution:

a) Endothermic reaction (since ΔH > 0)

b) Heat is absorbed (for endothermic reactions).

c) Temperature would down (for endothermic reactions).

d) 2MgO(s) + 72.3 kJ → 2Mg(s) + O2(g)

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