Chemistry, 22.07.2019 19:30 makayla4141
To test the effectiveness of a gunpowder mixture, 1 gram was exploded under controlled stp conditions, and the
reaction chamber was found to expand to 310 cm2. what volume would these gases occupy at the temperature
produced by an uncontrolled explosion (2,200°c) and 2.1 atmospheres of pressure?
5,900 cm
1,300 cm
7.7 x 104 cm
1,000 cm
Answers: 3
Chemistry, 21.06.2019 22:30
The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.
Answers: 2
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
Chemistry, 22.06.2019 16:00
Which factor is likely to impact the possible number of compounds ?
Answers: 1
To test the effectiveness of a gunpowder mixture, 1 gram was exploded under controlled stp condition...
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