If 0.251moles of H2O gas are produced, how many liters of oxygen gas was used?
___H2(g) + ___O2(g) ___H2O(g)

(use equation above) If 5.50liters of hydrogen is used to make water, how many grams of oxygen should be used also?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.