2. The atoms that make up nitrogen gas...
N2
A share two covalent bonds.
B. have a definite shape.
1
C. share a pair of neutrons.
D. have two free electrons.

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate