a base
A Arrhenius base.
The Bronsted Lowry definition.
acidic
An acid is a substance the produces hydrogen ions (H+) when mixed with water while a base produces hydroxide ions (OH-). Another models says that and acid donates or gives away a proton (H+) while a base accepts a proton.Read more: Differentiate_acids_from_bases
-OH negative ions
A base or alkaline substance lowers the H (hydrogen ion) concentration in a solution. Bases can accept or remove hydrogen ions from the solution, increasing the concentration of OH- ions and thereby reducing the concentration of H+ ions. Examples of bases include sodium hydroxide (NaOH) and ammonia (NH3).
If a substance produces OH- ions in a solution, then it is called a 'base' or 'alkali' or basic salt.
The Bronsted Lowry definition.
OH-
A base does this. The hydroxide (OH-) ion appears in solution. An acid produces hydrogen (or hydronium) ions in solution, and not hydroxide ions.
If a substance produces hydroxyl ions (OH-) when dissolved in water, it is referred to as a BASE.
A base in solution will produce hydroxide or OH- ions.
No. If the number of H+ and OH- ions are equal then the solution is neutral. A solution is considered alkaline if it has more OH- ions than H+ ions.
This substance is an acid.
a base produces hydroxide ions(OH-) in water
acidic
OH-..
The presence of OH- ions makes an substance alkaline. When dissolved in solution, the substance should be able to liberate OH- ions.