Reaction enthalpy

Questions (4)

Given these reactions :X(s) + 1/2O2(g) --> XO(s) (Delta)H= -707.7 kj XCO3(s) --> XO(s)+CO2(g) (Delta)H= +381.9kj What is
1. 4 answers
2. asked by anon
3. 6,427 views
In the classroom, we reactedMg(s) + 2HCl -> MgCl2(aq) + H2 (g) (0.31 g of Mg(s), and 99.46 g of HCl) Initial temp. = 22.5
1. 2 answers
2. asked by Kara
3. 982 views
Hii i was wondering if u cud help me solve this problem..im not sure how to start it.Calculate the delta H for the reaction of
1. 5 answers
2. asked by Anmol
3. 576 views
The standard reaction of enthalpy for the hydrogenation ofpropene, CH2CHCH3 (g) + H2 (g) → CH3CH2CH3 (g) is -124 kJ/mol. The
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2. asked anonymously
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