Which is least likely to occur after an experiment is conducted to test a hypothesis?
a. the data is analyzed to see if it supports or refutes the hypothesis.
b. the same experiment is conducted again to see if the data are reliable.
c. the hypothesis becomes a theory if the results support it.
d. a new experiment is designed to provide additional data about the hypothesis.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

Which of the following describes the entropy change as a solution is made from a liquid and solid