how many liters of oxygen gas at 153°c and 0.820 atm can be produced by the decomposition of 22.4 g of solid kclo3? (the other decomposition product is solid potassium chloride.)

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories.if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?