Question

Comparing Solutions
Which of these statements best explains why pure water has a pH of 7?
Pure water contains only H2O molecules, but pH is based on the concentration of H3O+ ions.
Each molecule of water can dissociate to form 7 H30+ ions.
Water self-ionizes to form an equilibrium system that has [H3O+] = 1.0 x 10-7 M.
DONE
1) Intro

Answer 1

Answer: Water self-ionizes to form an equilibrium system that has [H3O+]=1.0 x 10-7 M.

Step-by-step explanation:

Answer 2

Answer:

C

Step-by-step explanation:

Water self-ionizes to form an equilibrium system that has [H3O+] = 1.0 × 10–7 M