O A small community's well-mixed 100 L reservoir is being fed by a stream at a rate of 10L/minute and flows from the reservoir into the town at the same rate. Eleanor believes that the stream feeding the reservoir contains an unknown concentration of a dangerous schemical. To test the impact on the town's water supply, she measures the concentration of chemical in the reservoir to be 1 g/L and then takes a second measurement of 2 g/Lone minute later. Assuming that the concentration of chemical is uniform throughout the reservoir and that the concentration of chemical in the stream stays constant overtime, use these measurements to calculate )A formula for the amount of chemical in the reservoir after t minutes. (b) The concentration of chemical in the stream. (c) The limiting concentration of chemical in the reservoir as t oo.