I need help, please. I'll give brainliest to first correct answer. The method is the crisscross method.

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

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m

Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.