Awell-tested explanation that explains a lot of observations is
a. a hypothesis.
b. an inference.
c. a theory.
d. a controlled experiment.

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water