Question

What makes a compound a base?

a. It dissolves into Hydrogen ions in water (H+ or H3O+)
b. It has a pH lower than 7
c. It dissolves into Hydroxide ions in water (OH-)
d. It cannot be mixed with oil

Answer 1

C.) It dissolves into Hydroxide ions in water (OH-)

Step-by-step explanation:

A.) is incorrect because acids dissolve into hydrogen ions, not bases.

B.) is incorrect because acids have a pH lower than 7. Bases have a pH higher than 7.

C.) is correct because this is the defining characteristic of bases.

D.) is incorrect because bases can dissolve oils. This means they can be mixed.