Avariety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. which of the following is most likely to indicate a chemical change when a fuel burns? a. no gas bubbles form b. a clear solution is formed c. the mixture changes temperature d. there is a coloured flame
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Chemistry, 21.06.2019 15:00
If a reaction has g of -136kj at 110°c, will it be spontaneous at this temperature (110°c)? yes or no
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Chemistry, 21.06.2019 22:00
Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.
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Chemistry, 22.06.2019 10:10
For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate,m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
Avariety of observations can indicate whether or not a chemical reaction is happening when chemicals...
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