Chemistry, 02.04.2021 20:50 depinedainstcom
Which of the following is NOT an example of a chemical change?
A) A hand warmer heats up after you squeeze it.
B) Water evaporates into steam.
C) An antacid tablet neutralizes stomach acid.
D) Baking soda and vinegar foam and erupt like a volcano.
Answers: 2
Chemistry, 22.06.2019 07:00, erickamurillo9929
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
Answers: 2
Chemistry, 22.06.2019 12:20, sindy35111
Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l. s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?
Answers: 3
Chemistry, 22.06.2019 16:30, ccispoppin12
Asample of freon gas has a volume of 2.23 liters, a pressure of 4.85 kpa, and a temperature of -1.36°c. calculate the volume at a pressure of 1.38 kpa and a temperature of 5.5°c. (show work)
Answers: 1
Which of the following is NOT an example of a chemical change?
A) A hand warmer heats up after you...
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