Chemistry, 20.11.2020 20:10 pierceybbpow8o39
How would the strength of an electromagnet change if a copper core was
used to replace its iron core?
O A. It would decrease.
B. It would stay the same.
C. It would increase.
D. It would vary unpredictably.
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Answers: 1
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A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?
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How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.
Answers: 1
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32p and 31p are two isotopes of phosphorus. compare the number if subatomic particles that are present in the atoms of these isotopes.
Answers: 1
How would the strength of an electromagnet change if a copper core was
used to replace its iron cor...
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