a substance with a ph of 9 has\na no h₃o⁺ ions or oh⁻ ions.\nb more h₃o⁺ ions than oh⁻ ions.\nc more oh⁻…

a substance with a ph of 9 has\na no h₃o⁺ ions or oh⁻ ions.\nb more h₃o⁺ ions than oh⁻ ions.\nc more oh⁻ ions than h₃o⁺ ions.\nd the same number of h₃o⁺ ions as it does oh⁻ ions.

a substance with a ph of 9 has\na no h₃o⁺ ions or oh⁻ ions.\nb more h₃o⁺ ions than oh⁻ ions.\nc more oh⁻ ions than h₃o⁺ ions.\nd the same number of h₃o⁺ ions as it does oh⁻ ions.

Answer

Brief Explanations:

The pH scale ranges from 0 - 14. A pH of 7 is neutral, with equal amounts of $H_3O^+$ and $OH^-$ ions. A pH less than 7 is acidic, having more $H_3O^+$ ions than $OH^-$ ions. A pH greater than 7 is basic, meaning there are more $OH^-$ ions than $H_3O^+$ ions. Since the substance has a pH of 9 (greater than 7), it is basic.

Answer:

C. more $OH^-$ ions than $H_3O^+$ ions.