By adding the same (stechiometrically) amount of a (strong enough) base
bicarbonate
Milk and vinegar are both acidic, and most samples of water are slightly acidic due to CO2 absorption. Ammonia dissolved in water is slightly basic. Therefore, an ammonia solution could neutralize an acid.
add lime...
No, milk is itself slightly acidic. Depending on the concentration of the acid you are trying to neutralize, you could dilute it a bit, but it would still be acidic.
water
bicarbonate
it would be baking soda
Milk and vinegar are both acidic, and most samples of water are slightly acidic due to CO2 absorption. Ammonia dissolved in water is slightly basic. Therefore, an ammonia solution could neutralize an acid.
add lime...
No, milk is itself slightly acidic. Depending on the concentration of the acid you are trying to neutralize, you could dilute it a bit, but it would still be acidic.
That would be called neutralization, and it is done by adding an alkaline substance of some kind. Acids and alkalines neutralize each other.
is it when it enters your intestines where secretions from your pancreas neutralize the stomach acids
Buffers
Water is usually neutral. In the event that the water is acidic, it can be neutralized by adding a base. Calcium Hydroxide is an example of a basic substance.
A neutral substance has a pH of 7. If you have an acidic substance and wanted to neutralize it, you would have to add an alkaline substance to it. And example of this would be for indigestion or heartburn, you would take a tablet containing alkaline. This tablet neutralizes the acid in your stomach. These tablets are known as antacids.
water
Yes