Which statement best describes a physical change?
A)Changes can occur to certain chemica...
Chemistry, 22.04.2020 23:27, maxi12312345
Which statement best describes a physical change?
A)Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.
B)Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same.
C)Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
D)Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.
Answers: 3
Chemistry, 21.06.2019 17:30, badgirl2005
This is a mixture that has the same composition throughout.
Answers: 1
Chemistry, 22.06.2019 10:10, babyphoraaaaa
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 10:40, justicejesusfreak
Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3
Answers: 1
Chemistry, 22.06.2019 18:00, jalenclarke25
What volume would 2.25 moles of ne has occupy at stp?
Answers: 1
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