A 150 gallon tank is half full of pure water. A salt solution with a concentration 5 lb/gal is flowing into the tank at the rate of 4 gal/min while the well-mixed solution is flowing out at the rate of 1 gal/min. (a) Find Q(t), the amount of salt in lbs in the tank at time t minutes. (b) Find the concentration of salt in the tank when the tank begins to overflows.

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst