In a reaction, hydrogen gas is produced from 12.5 grams of phosphoric acid reacts with 15.7 grams of lithium. What volume will the hydrogen that is produced fill if the temperature is 20°C and the pressure is 876 mm Hg?

How does a noncompetitive inhibitor reduce an enzyme’s activity?

Which of the following is not true about the atomic model of substances?

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?