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Chemistry: Post your doubts here!
To my inadequate knowledge the answer is "D" CH4 + 2O2 → CO2 + 2H2O Bond energy of reactants: =4(410)+2(496) = +2632 kj/mol now look at The bond energy of Products: = 2 (740)+ 4 (460) = +3320 kj/mol last step: enthalpy change = B.E of Reactants - B.E. of Products... -
Physics: Post your doubts here!
Do u want me to show you how I got the answers? of course yes :) -
Physics: Post your doubts here!
Here you go thanks in advance:cool: -
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Chemistry: Post your doubts here!
Oh sorry :oops: bytheway thanks for telling my mistake. Good luck -
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Physics: Post your doubts here!
Explain why the answer is D Thanks in Advance :) -
Mathematics: Post your doubts here!
Help ! kindly explain value of "common ratio" obtained Thanks in Advance. :) -
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Chemistry: Post your doubts here!
9701/12/O/N/10 (Chemistry) October 2010 paper 1 : Q8 ,Q11 , Q28, Q34, Q39. Help me please!! Thanks in advance :) -
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Mathematics: Post your doubts here!
9709/12 June 2012 Pure Mathematics ! Help me please! thanks. -
Chemistry: Post your doubts here!
KMnO4 is a famous oxidising agent. Using COLD KMnO4 will break "C=C" and add an -OH group on each carbon atom. Now count the total number of hydroxy groups present. Two are attached with each Carbon and one already attached to your absolute LEFT hand side (in the diagram ). So this narrows your...