What else would have to happen in order for those ingredients to be turned into something new?

How is the composition of a meteorite relevant to finding out the composition of earth's core?

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro