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

Respuesta :

Answer:water self-ionize to form an equilibrium system that has [h30+]=1.0x10^-7 M

Explanation:

Water self-ionizes to form an equilibrium system that has [H3O+] = 1.0 × 10–7 M best explains why pure water has a pH of 7.

What is Water?

This is defined as a universal solvent which comprises of the chemical elements hydrogen and oxygen.

Pure water has a pH of 7 as a result of it being able to self-ionize  to form an equilibrium system that has [H3O+] = 1.0 × 10–7 M which is why option C was chosen.

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