Which statement below is true?
a. The number of Ni atoms in 100 moles of Ni (s) is the same as the number of Ni atoms in 100 moles of nickel (II) chloride, NiCl2.
b. One moles of NH 3 weighs more than one mole of H 2O.
c. There are equal numbers of nitrogen atoms in one mole of NH 3 and one mole of N 2.
d. The number of Cu atoms in 100 grams of Cu (s) is the same as the number of Cu atoms in 100 grams of copper (II) oxide, CuO.
e. There are more hydrogen atoms in 2 moles of NH 3 than in 2 moles of CH 4.
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