You'd have to add an acid
You add an acid to a base to neutralize it. The acid and base react to form water and a salt, resulting in a neutral solution.
To make an acid or a base neutral, you can add a substance called a neutralizer. For acids, you can add a base (like sodium hydroxide), and for bases, you can add an acid (like hydrochloric acid). The neutralizer will react with the acid or base to form water and a salt, resulting in a neutral pH.
You would add a Base.
you would add the appropiate number of positive atoms to balence out the atom. for example if an atom has a charge of -5 you would add 5 positvly charged atoms to make the overall charge 0. that will make it a neutral atom.
If you mean neutral on the pH Scale, then any Base or Alkali should work.
To neutralize a base with a pH of 9, you would add an acid of equal strength. For example, you could add hydrochloric acid (pH=-1) to the base to neutralize it and bring the pH closer to 7, which is neutral.
If it is an acid then add a base until the pH level becomes 7, which is neutral. If it is a base, add acid until the pH is seven.
Acid solution is not neutral, neutral is PH=7, so you need to add base until PH=7
Water may be a neutral or if possible you can make your own. All it takes is some neutralisation. Just add an acid such as vinegar and add a base within it such as bicarbonate then the liquid you have is possibly a neutral. But to be sure you could use a pH indicator to identify if it is an acid,neutral or base (alkaline).Red,orange and yellow for acid,green or lime for neutral and blue, purple or violet for base (alkaline). By Professor Tran
The best way to neutralize an acid is to add a base to it. The base will react with the acid to form water and a salt, which will result in a neutral solution. It is important to add the base slowly to prevent any violent reactions.
Baking soda is probably your best bet. The Bicarbonate is a weak base which will neutralize the acetic acid in the vinegar. There are other bases you can use as well, such as lye (sodium hydroxide) but baking soda is safest.
Adding an alkali to an acid solution would result in forming a salt. However, no acid solution can be neutral.