Balance all of the following equations i.) Fe + H2O => Fe2O3 + H2
ii.) PbS + O3 => PbSO4 + O2
iii.) KNO3 => KNO2 + O2
iv.) Al + H2O => Al2O3 + H2

What is the molality of a solution that has 4 mol of kci in 0.800 kg of water

What is the atomic number of an atom that has 6 protons

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?