Answer:
The sun
Explanation:
The sun is the source of energy that provides the boost for electrons during photosynthesis
Covalent bonding occurs when electrons are shared between atoms. Double and triple covalent bonds occur when four or six electrons are shared between two atoms, and they are indicated in Lewis structures by drawing two or three lines connecting one atom to another.
Answer: D, splitting water into hydrogen and oxygen is a chemical change.
Multiply 10.49 by 12.993. that should be it. 130 grams ish?