2H2(g)+O2(g) ---> 2H2O(l) delta H=

Why these answers are so?1- For this reaction 2H2 + O2 = 2H2O a- dela H=delta Hf b-delta Hc= delta Hf c- delta H= delta Hc d-
1. 0 answers
2. asked by Omed
3. 1,343 views
CH4(g)+2O2 arrow CO2(g)+2H2O(1) delta H=-890.3kJ. Calculate delta Hwhen 5 grams of methane react with an excess of oxgen?o i
1. 0 answers
2. asked by Anonymous
3. 666 views
calculate the delta h for the reaction 2C+2H--> C2H4C+O2--> Co2 delta h= -393.5 C2H4+ 3O2--> 2CO2+ 2H2O delta h= 1410.9 H2+ 1/2
1. 0 answers
2. asked by Anonymous
3. 984 views
Consider the following three reactions:Ca(s) + 2H2O(l) ---> Ca2+(aq) + 2OH^- (aq) + H2(g) CaO(s) + H2O(l) ---> Ca2+ (aq) + 2OH^-
1. 1 answer
2. asked by Rose
3. 1,589 views
Calculate delta H for the formation of one mole of N2O5 from the elements at 25 degrees C using the following data.2H2 + O2 -
1. 4 answers
2. asked by Anonymous
3. 3,800 views
CH4 + 2O2 ---> CO2 + 2H2ODelta H H2O= -285.8 kJ/mole Delta H CO2= -393.3 kJ/mole What is the standard heat of formation of
1. 1 answer
2. asked by kc
3. 4,529 views
Can anyone help me with these three questions?Predict the sign of delta S° and then calculate delta S° for each of the
1. 3 answers
2. asked by Anonymous
3. 9,562 views
Does my work here look right?3. One mole of an ideal gas expands adiabatically into a vacuum. Calculate q, delta-e, w, and
1. 0 answers
2. asked by Jess
3. 1,299 views
Enthalpy changes:H2O2(l) ----> H2O(l) + 1/2P2(g) delta H= -94.6kJ H2(g) + 1/2O2(g)----> H2O2 delta H= -286.0kJ Calculate the
1. 1 answer
2. asked by Megan
3. 3,028 views
For the reactionI2(s)+Cl2(g) ==> 2ICl(g) delta H= 36kJ, delta S= 158.8J/K at 25° C. Calculate the temperature at which Keq is
1. 1 answer
2. asked by ---
3. 1,504 views