Antacid has a pH of 11. What does that tell you about its concentration of hydrogen ions? What does that tell you about its concentration of hydroxide ions?

The concentration of hydrogen ions is and the concentration of hydroxide ions is . Thus the concentration of hydroxide ions is more than the concentration of hydrogen ions.

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.  

Putting in the values:

Thus the concentration of hydroxide ions is more than the concentration of hydrogen ions.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).