What is the total amount of heat required to vaporize 1.00 gram of h2o() at 100.°c and 1 atmosphere?

What stress will shift the following equilibrium system to the left? n2(g) + 3h2(g) ⇌ 2nh3(g) adding more n2(g) adding more nh3(g) increasing the pressure of the system reducing the volume of the container

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?