shown below.
Ascientist measures the number of flies in a room over time. the results are
shown below.
time (hours) number of flies
10. 35
20. 47
30 52
40. 51
50. 48
60. 40
which of the following statements describes the trend in the data?
o
a. the number of flies increased, then decreased
b. the number of flies was constant.
o
c. the number of flies decreased.
o
d. the number of flies decreased, then increased
Answers: 2
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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
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Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?
Answers: 2
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Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water
Answers: 1
Ascientist measures the number of flies in a room over time. the results are
shown below.
shown below.
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