How many electrons should be added to balance the following oxidation half-reaction, h2o2 imported asset 2 h+ + o2?

none

one

two

four

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space