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shyanne
Questions (11)
You guess on all of the answers on a 10 question quiz. If there are 4 possible answers for each question, what is the
1 answer
592 views
The boundary line is the line on our graph where x or y equals infinity.
1 answer
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Cathode = Cu2(s) + 2e- �¨ Cu(s)
Anode = 2H2O(l) �¨ O2(g) + 4H(g) + 4e- Net = Cu2(s) + 2H2O(l) �¨ Cu(s) + O2(g) + 4H(g) the
0 answers
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Between Mg and Zn which one is the anode and which one is the cathode?
And between Mg and Fe which one is the anode and which one
0 answers
754 views
Between Mg and Zn which one is the anode and which one is the cathode?
And between Mg and Fe which one is the anode and which one
0 answers
361 views
Between Mg and Zn which one is the anode and which one is the cathode?
And between Mg and Fe which one is the anode and which one
0 answers
325 views
calculate the volume of water that can be treated if 50 g of potassium permanganate is added to the system. Assume that the
0 answers
451 views
molar enthalpy of combustion for pentane?
Mass C5H12= 2.15g Mass H2O= 1.24kg Initial temp= 18.4°C Final temp= 37.6°C
1 answer
1,177 views
Calculate the enthalpy of reaction for the combustion of ethene.
Express the enthalpy of reaction calculated in question above as
5 answers
1,949 views
how do you prevent an egg from breaking from a height of 10-15 ft.?
1 answer
888 views
how to i get started on a middle ages shield?
1 answer
396 views
Answers (5)
1. igneous
1 . acd 2. a 3. b
im doing ethene so it is -84.0. Howe do i spilt the two up? the second question confuses me and im completely frazled about what to do. C2H6(g) + 3O2(g) = 2CO2(g) + 2H2O(g) =(2mol CO2 x -393.5kJ/1 mol CO2 + 2mol H2O x -241.8kJ/ 1 mol H2O) - (1mol C2H6 x
how do i express the enthalpy of reaction calculated in question above as a molar enthalpy of reaction per mole of carbon dioxide?
ok i got to (2mol CO2 x -393.5kJ/i mol CO2 + 2mol H2O x -241.8kJ/ 1 mol H2O) - (1mol C2H6 x -94.0/ 1 mol C2H6 + 3mol O2 x 0kJ/ 1 mol O2) = (-1270.6kJ0 - (-84.0) = -1186.6kJ is this right? and how do i do the second part about expressing the enthalpy of