The answer is Three
!!!!!!
Reactants are formed from a chemical bond with can be broken down by vaporizing
Answer: to find a cure for the common cold to produce insulin for diabetics
Explanation: It has helped many people
Answer:
H
Explanation:
Example,
HCl for hydrochloric acid
H2SO4 for sulphuric acid
HNO3 for nitric (v) acid