The scientist will add up the mass of the protons and mass
of the neutrons to come up with the approximate mass of atom because protons
and neutrons is what consist of the atoms. Therefore, in order to have the approximate
mass of an atom, adding the mass of protons and neutrons will give the result.
Answer:
OD. The cat has been injured when it landed on its wrist.
Explanation:
Enzymes are biological catalysts. Catalysts work by lowering the amount of energy required to set off a chemical reaction.
The correct answer is D,
dose this help?
Food is the most important source of chemical energy for living things. The chemical energy in food is converted, or changed, by the body into moving mechanical energy and heat energy. People have invented ways to use the chemical energy of substances to power machines.
