Need , asap:

to use le chatelier's principle to predict the effect of a change in temperature on a system at equilibrium, you must:

know δs for the forward reaction

know δh for the forward reaction

know t for the forward reaction

know the molecular weights of each reactant

Compare and contrast physical changes with chemical changes.

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

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.