Chemistry, 03.08.2019 15:30 khalibarnes001
Nitrogen has the atomic number 7. an isotope of nitrogen containing seven neutrons would be
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Chemistry, 22.06.2019 10:00
Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this
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Chemistry, 22.06.2019 14:50
How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.
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Chemistry, 22.06.2019 23:00
What is the most common reason for matter changing its state?
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Nitrogen has the atomic number 7. an isotope of nitrogen containing seven neutrons would be...
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