What actions can be (or have been) taken from a larger perspective (provincial, national, or international) to reduce overall CO2 emissions.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

it's c. elements are placed in rows based on how may valencies electrons have.

catya that's not even a b or c