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Chemistry, 22.06.2019 09:00
How are isotopes of the same chemical element alike? how are they different?
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Chemistry, 22.06.2019 16:30
4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:
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Chemistry, 22.06.2019 19:30
Describe the forces both attractive and repulsive that occur as two atoms move closer together.
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Atomic weight is equal to the number of protons and neutrons in the nucleus. atomic weight is equal...
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