What is it called when it erupts onto Earth's surface?

Magma

Explanation:

If you’re talking about what erupts from a volcano then lava but the lava turns into magma when it hardens

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.

the dependant variable is spilled water

the independent is the heat