Chemistry, 03.10.2019 05:20 sillslola816oxb5h7

How do you calculate the number of neutrons in an atom?

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Chemistry, 22.06.2019 09:30, pettitchristy1

What is the mass of 0.46 mil of mgcl2

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Chemistry, 22.06.2019 10:00, winstonbendariovvygn

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, 23.06.2019 01:00, daniel1480

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas