Add a base to it until the pH is within a reasonable distance of 7.
Yes
An alkali.
NO because it cannot
I'm assuming you mean a salt neutralising an acid or base- This can not actually happen, because a salt is already 'Neutralised' An acid can neutralise a base, and a base neutralise an acid, but when Base+Acid reacts, a salt is formed. Adding a salt to a acid or base solution will only make it salty.
No, becuase, idgaf.
by mixing it with base
base
Yes
An alkali.
NO because it cannot
I'm assuming you mean a salt neutralising an acid or base- This can not actually happen, because a salt is already 'Neutralised' An acid can neutralise a base, and a base neutralise an acid, but when Base+Acid reacts, a salt is formed. Adding a salt to a acid or base solution will only make it salty.
No, becuase, idgaf.
do you neutralise tannic acid
an alkali
by the addition of base
A Nitrate salt depending on what was used to neutralise the acid. E.g. If you used copper to neutralise the nitric acid then copper nitrate would be produced.
bases can neutralize acids