Please answer both questions.

A.) How many moles of nickel will react with 9.91 mol of hydrochloric acid?

B.) How many moles of NiCl2 can be formed in the reaction of 8.00 mol of Ni and 16.0 mol of HCl?

The correct answer should be "electrons orbit the nucleus in circular motions exactly as shown on the classic bohr model."

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.