Which of the following substances is most likely to have a ph close to 7?

a) lemon

b) antacid

c) ammonia

antacid

Explanation:

Antacids are substances taken to neutralize hyper acidity of the stomach. Antacids are basic in nature, the most common antacid is calcium carbonate having a pH of about 9.91.

Ammonia has a pH if about 11 under standard conditions while lemon has a pH of about 3 because of it's citric acid content hence the answer above.

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).

po-215 i got it right on the quiz