Water is already neutral.
water your soil
Pure water is always neutral.
No
neutralise is making something neutral, so it isn't acidic or an alkaline eg. water
Urea water solution is neutral.
No
You can - it will neutralise the acid though, creating water.
Sodium Bicarbonate, also known as baking soda
Well they could but then it would be cheaper and safer to buy water!
Yes. All bases neutralise acids.
They have been turn to salt and water only
Only when they exactly neutralise one another.