4. which hypothesis led to the discovery of the proton?
a. cathode rays should be attracted to...
4. which hypothesis led to the discovery of the proton?
a. cathode rays should be attracted to a positively-charged plate.
b. the nucleus of an atom should contain neutrons.
c. when a neutral hydrogen atom loses an electron, a positively-charged
particle should remain.
d. a proton should be 1840 times heavier than an electron.
Answers: 3
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8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
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Temperature is defined as a. the equivalent of heat. b. a measure of the average kinetic energy of the individual atoms or molecules composing a substance. c. how hot or cold it is. d. the total kinetic energy of the atoms or molecules composing a substance. e. none of the above is correct.
Answers: 1
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