When 2.16g of H2 reacts with excess O2 by the following equation, 258kJ of heat are released. What is the change of enthalpy associated with the reaction of 1.00mol of hydrogen gas?

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

How many moles are in 43.9 l of oxygen

How does the attraction between particles affect the ability of a solvent to dissolve in a substance