Equations can be balanced by using the half-reaction method. Which step should be completed first when using this method?
inserting the coefficients
balancing the half reactions
identifying the half reactions
finding the oxidation states of atoms
O

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

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.

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?