The decomposition of hydrogen peroxide, h2o2, has been used to provide thrust in the control jets of various space vehicles. using the supplemental data, determine how much heat (in kj) is produced by the decomposition of 1.49 mol of h2o2 under standard conditions. 2 h2o2(l) → 2 h2o(g) + o2(g)

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?

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.