Question

iv. Tooth enamel is one of the hardest
substances in our body. How does it
undergo damage due to eating chocolates
and sweets?What should we do to prevent
it?
V. How do [H+] ions exit in water?​

Answer 1

Answer:

1.pH=-log10[H3O+]

As the pH value increase concentration of

H3O+ ions decreaces.

2.neutral

3.NaOH has higher pH because it is a base

4.by eating sweets and chocolates they stick to our teeth and microorganisms present in our mouth converts it to acid and corrodes tooth enamel.

5. H+ ions exist in water as H+(aq) or H3O+ ions because hydrogen cannot exist in mono molecule so it reacts with water to form H3O+

Ions

H+ + H2O---H3O+

Explanation:

Answer 2

Answer:

Ans... 1. Tooth enamel is made of calcium phosphate, it doesn't dissolve in water., 5.5 sugar is present in chocolate and sweat get broken by bacteria present in the mouth to acid.