All chemical reactions have a conversation of mass and energy.
Because:- There are only two laws for conversation in a chemical reaction. The conversation of mass, no mass can be created nor destroyed. Also, the law of conversation of mass states that no energy can be created nor destroyed in a chemical reaction. The charge can obviously change because they can bond and change charges.
C because a compound is a substance made of at least two atoms bonded together
Answer:
The smallest unit of a compound is a molecule, which is made up of atoms held together by bonds.
