Which of the following solutions has the highest concentration of sugar?
a. a sweetened drink is mostly water mixed with 2 grams of sugar
b. a sugar solution in a bird feeder is 75% water and 25% sugar
c. there is not enough information to tell
d. the nectar of a flower is 15% sugar

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".