17. Mrs. Raynorcombined vinegar and baking soda to see if the mass would change after the reaction. What was the independent (test) variable?
What was the dependent (outcome) variable?

It would be true sodium reacts with water in a violent way 

Answerionic bond imfs are stronger than covalent;

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.