Suppose a subject on a treadmill puts out work at the rate of 85 W while consuming oxygen at the rate of 2.00 L/min. Assume this rate of oxygen consumed corresponds to a power output of 700 W. What is the percent efficiency of the subject

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

What energy is it when you flip on a switch on a lamp