Calculate the number of hydrogen atoms in 24.0 ng of ammonia

Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.

The number of medals awarded to the track team during the season.

It can be classified based on its

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.