Zark rebelson?? are all hydroxides of transition metals insoluble? is zinc and copper hydroxide both insoluble

Don't we teach grammar anymore?

You wrote, "Zark rebelson?? are all hydroxides of transition metals insoluble? is zinc and copper hydroxide both insoluble?"

It should look like, "Zark Rebelson, are all hydroxides of transition metals insoluble? Are zinc and copper hydroxides both insoluble?"

And the answer is "yes". Zn(OH)2 and Cu(OH)2 are insoluble in water. With an excess of OH-, zinc hydroxide will dissolve to form the complex ion, [Zn(OH)4]^2-.

In fact, as the solubility rules tell us, "... all hydroxides are insoluble except the group IA hydroxides. The hydroxides of Ca, Sr and Ba are slightly soluble.