Balancing Chemical Equations Carbon dioxide and water are produced when pentane (C5H12) reacts with oxygen. What is the balanced
equation for this reaction?
O C5H12(g) + O2(g) - CO2(g) + H2O(g)
O C5H12(g) + O2(g) - 5CO2(g) + H2O(g)
O C5H12(g) +8O2(g) – 5CO2(g) + 6H2O(g)
O 5CO2(g) + 6H2O(g) - C5H12(g) + 802(9)
x C5H12(9) +502(9) -5CO2(g) + 6H2(g)
O CH2(g) +O2(g) - CO2(g) + H2(g)
RETRY

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.

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

Calculate the number of molecules present in 0.750 mol of mgo.