An alkali is a soluble base, and zinc hydroxide is insoluble, so
it is a base.
View page
There is no reaction , because of the Common Ion Effect. The Common Ion is the Hydroxide.
View page
It produces zinc hydroxide and hydrogen.
View page
The reaction of zinc nitrate and excess sodium hydroxide begins
with precipitation of zinc hydroxide ( Zn(OH)2 ), followed by
dissolvement after adding excess sodium hydroxide ( 2 OH- ) to
formation of zinc aat-ions ( [Zn(OH)4]2- )