G A scientist measures the standard enthalpy change for the following reaction to be 560.3 kJ : 2BrF3(g) Br2(g) 3 F2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of BrF3(g) is kJ/mol. sample of solid platinum is heated with an electrical coil. If 31.9 Joules of energy are added to a 14.7 gram sample and the final temperature is 38.9oC, what is the initial temperature of the platinum

The answer is a i think

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.