Answer:
A unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12. It is equal to approximately 1.66 x 10-27 kg.
Explanation:
Answer:
the same
Explanation:
due to the law of conservation of mass, the mass will not change
Answer: X is an Esther
Explanation: alcohol and carboxylate acid forms esters
Number one would be Decades
