Explanation:
develop a short message which you will deliver to the people in this community about application of chemistry in everyday life
Given the concentration of aniline hydrochloride is 
Aniline hydrochloride is the conjugate acid of aniline a weak base.
pH can be calculated from
anilinium ion the conjugate acid of aniline.
Answer:
The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side.
Parasitism... basically a tick and a dog. The dog is the host, which is harmed by the tick.