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How is the answer D?
2 moles of water are formed, and the arrow is pointed in the correct direction, so it is +2 multiplied by the enthalpy of formation of water.
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How is the answer D?
2 moles of water are formed, and the arrow is pointed in the correct direction, so it is +2 multiplied by the enthalpy of formation of water.
View attachment 54277
How is 3 correct?
Yeah I get that part but why is it +, why not - ?
Answer is D. Please explain!
but isn't it that barium forms the most stable compounds and so they might not decompose on heating under a bunsen burner..through this logic I eliminated C at firstThe question states that vigorous effervescence occurred, so naturally I would opt for C, because Barium is the most reactive element amongst the other choices.
but isn't it that barium forms the most stable compounds and so they might not decompose on heating under a bunsen burner..through this logic I eliminated C at first
https://www.xtremepapers.com/community/threads/tips-for-chemistry-practicals-p3.11810/any tips for chemistry AS paper 31 practical
This was nicely explained thank you so much for this sir.
if u take 1st reading to 2dp then next readings should be in 2dpHow many decimal places should we take for burette readings
Shud it be 24.1 or 24.10??
http://maxpapers.com/wp-content/uploads/2012/11/9701_w14_qp_11.pdf
40) A reaction pathway diagram is shown.
energy
extent of reaction
Which reactions would have this profile?
1 (CH3)3CBr + NaOH → (CH3)3COH + NaBr
2 CH3CH2Br + NaOH → CH3CH2OH + NaBr
3 (CH3)3CCH2CH2Cl + 2NH3 → (CH3)3CCH2CH2NH2 + NH4Cl
How does one even do this? Answer is D.
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