Help me to name this compound please
.

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

What four properties do all waves have in common

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