Chemistry, 20.02.2021 14:10 wirchakethan23
B Given the enthalpy changes H1, and H2, below, construct a Hess's cycle that will enable you to find
the enthalpy change, Hr, for the reaction:
MgCO3(s) → MgO(s) + CO2(g) ΔΗr,
,
MgCO3(s) + 2HCl(aq) → MgCl2(aq) + CO2(g) + H2O(l) ∆H1,
MgO(s) + 2HCl(aq) -> H2O(l) + MgCl(aq) ∆H2
Answers: 1
Chemistry, 22.06.2019 07:20, rscvsdfsrysas1857
The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.
Answers: 1
Chemistry, 22.06.2019 11:50, hamidaakter936848
Calculate the molarity of each of the following solutions. part a) 0.12 mol of lino3 in 5.5 l of solution part b) 60.7 g c2h6o in 2.48 l of solution part c) 14.2 mg ki in 100 ml of solution
Answers: 2
Chemistry, 22.06.2019 20:10, maddie1776
Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)
Answers: 1
B Given the enthalpy changes H1, and H2, below, construct a Hess's cycle that will enable you to fin...
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