Question

Complete the sentence. When a base is added to water, hydronium ions __________.

Answer 1

When  a base  is added  to water, hydronium   ions   decrease

Explanation

•  Base  dissociate to give  out  OH-  ions

•  In the other hand ,when  water (H2O)   dissociate it  give out hydronium ions ( H3O+)    and OH- ions
• when  base  is added to  water  more OH-   it  led  to  addition of more Oh- ions  hence  H3O+ decrease.

 

Answer 2

It is decrease not increase, so the answer is B. Do not listen to these other people, I just passed that test.