Chemistry, 27.12.2019 01:31, kelsotay623
When an oxygen atom forms an ion, it gains two electrons. identify the electrical charge of the oxygen ion.
a. -1
b. +1
c. -2
d. +2
Answers: 2
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Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming
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Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?
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Compare and contrast physical changes with chemical changes.
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A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml
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When an oxygen atom forms an ion, it gains two electrons. identify the electrical charge of the oxyg...
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