10 points!
which of the following is/are characteristic(s) of a good hypothesis?
a. it is falsifiable
b. it is testable
c. it is based on previous research
d. all of the above

B. It is testable

Explanation:

A hypothesis is a proposed statement which is based upon few evidences. It is a prediction or supposition on the basis of observation. It is the part of the scientific method. It is testable in nature as the correctness or falsibility of the hypothesis is based upon the experimental trails and direct observation. Hence, a primary criteria for a good hypothesis is that it is testable.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.