.025g of a gas is captured using water displacement. The volume of the gas was 45.2ml at 22 degrees Celsius. The water levels inside the tube and inside the phneumatic trough were the same. Barometric pressure on the day of collection was 772.2mmHg. The vapor pressure of water at 22 degrees Celsius is 19.80mmHg

Ithink is d. physical property

Compound with sulfer  is bright red 

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.