Is CaNO22 a base or an acid?
Ca(NO2)2, or calcium nitrite, is considered a salt rather than a strong acid or base. It is formed from the reaction of a strong base (calcium hydroxide) and a weak acid (nitrous acid). In solution, it can exhibit some basic properties due to the presence of nitrite ions, which can react with water to produce hydroxide ions. However, it is not classified as a strong base.