Which of Daltons atomic Theory are still valid after the work of Rutherford and Bohr? Which are no longer valid?Why?

In any energy conversion, some of the energy is lost to the environment as question 5 options: electrical energy potential energy sound energy thermal energy

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

Is powdered sports drink ionic or covalent ? 10pts !