Which can be determined using a chemical formula?
a. the elements that make up the compound
b. the substances that make up a solution
c. the ph of a solution
d. the boiling point of a compound

a. the elements that make up the compound

Explanation:

Chemical formulas are the symbolic representation of the elements contained in a compound along with their relative proportions.

For example: The chemical formula for water is which shows that it is formed by combination of hydrogen and oxygen in the ratio of 2: 1 respectively.

pH of the solution is determined by litmus paper, pH paper or pH meter.

Boiling point is the temperature at which atmospheric pressure becomes equal to the atmospheric pressure.

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