Which of the following is an example of combustion? A. sodium cyanide + hydrochloric acid -> sodium sulfate + hydrogen cyanide
B. hexane + oxygen -> carbon dioxide + water
C. potassium chlorate -> potassium chloride + oxygen
D. aluminum + cobalt chloride -> aluminum chloride + cobalt

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

Which of these sequences lists the correct order for the creation of sedimentary rock from sediment? a. deposition, burial, compaction, cementation b. burial, deposition, compaction, cementation c. compaction, deposition, burial, cementation d. cementation, deposition, burial, compaction

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.