What is the acid and base whose reaction will produce the salt Na3PO4?

What is the acid and base whose reaction will produce the salt PbS?
What is the acid and base whose reaction will produce the salt KIO3?

phosphoric acid, sodum hydroxide
lead hydroxide, H2S
potassium hydroxide, HIO3

What about the bases that produce these salts? Also, could you explain how you got the acids?

3 answers

THE ACID AND BASE WHOSE REACTION PRODUCE THE SALT NA3PO4=H3PO4 + NAOH-NA3PO4 + 2H2O
THE ACID AND BASE WHOSE REACTION WILL PRODUCE THE SALT PBS IS= PBO +H2S---PBS +H2O
THE ACID AND BASE WHOSE REACTION WILL PRODUCE THE SALT KIO3 IS=HCL +KOH---KCLO +H2