Question

part b
hcl is a weak acid
submit
request answer
false hcl is a strong acid, it is completely ionized in solution
true hcl is a weak acid, it is only partly ionized in solution
orthophosphoric acid is a triprotic acid
submit
request answer
false orthophosphoric acid, h3po4, is a triprotic acid, it has three ionizable hydrogen atoms
true orthophosphoric acid, h3po4, has three hydrogen atoms, however, only two of them are ionizable. that is why orthophosphoric acid is a diprotic acid

Explanation:

HCl is a strong - acid as it completely ionizes in solution. Orthophosphoric acid ($H_3PO_4$) is a triprotic acid as it has three ionizable hydrogen atoms.

Answer:

Part A: False. HCl is a strong acid, it is completely ionized in solution.
Part B: True. Orthophosphoric acid, $H_3PO_4$, is a triprotic acid, it has three ionizable hydrogen atoms.