How does an atom of sulfur-36 become a sulfide ion with a -2 charge?
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a. the atom gains 2 protons to have a total of 38.
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b. the atom loses 2 protons to have a total of 14.
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c. the atom gains 2 electrons to have a total of 18
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d. the atom loses 2 electrons to have a total of 14.

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

Which one of the following research methods can show cause and effect