When collecting a gas over water, the gas is always a mixture of the gas collected and water vapor. a. True
b. False

Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.

What are fructose and glucose an example of?

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins