Please help Use the following chemical equation to answer the question: N2 + 3 H2 2 NH3
If you had 21.9 grams of nitrogen, how many grams of NH3 should be produced?

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth