In an electrically neutral atom of any element, there are equal numbers of
a) protons and neutrons.
it was a

Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

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