Respuesta :
Answer:
Alkali.
Explanation:
An alkali . Examples are sodium hydroxide (NaOH) and Calcium hydroxide
(Ca(OH)2
Answer: Arrhenius base
Explanation:
According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions [tex](OH^-)[/tex] when dissolved in water and an acid is defined as a substance which donates hydronium ions [tex](H_3O^+)[/tex] in water.
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.
According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.
A substance that increases the hydroxide ion concentration of a solution is an Arrhenius base.
