Question

2. (a) Write the name given to bases that are highly soluble in water. Give an example. (b) How is tooth decay related to pH? How can it be prevented? (c) Why does bee sting cause pain and irritation? Rubbing of baking soda on the sting area gives relief. How?

Answer 1

Explanation:

a.Alkali

b.tooth deccay occurs when the pH of our mouth falls below 5.5,thence it is related to pH.It can be prevented by brushing teeths regularly as pastes contains base and prevents the pH to fall by neutralising

c.sting bee causes pain and irritation because of the acid injected in our body after the sting,rubbing baking soda(a basic salt) neutralises with that acid and gives us a relief

Hope that works