Which of the following is the correct word equation for the following chemical equation? N₂ + O₂ → N₂O₅

Give more examples of this type of heat transfer:

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

In general metals get as you move from left to right across the periodic table.