Ion exchange chromatography is a commonly used method for separation of biomolecules. In what order would Arg, Val, and Glu elute from a carboxymethyl column at pH 6.0. Carboxymethyl is negatively charged at pH 6.0. a. Glu, Val, Arg b. Arg, Val, Glu c. Val, Glu, Arg d. Glu, Arg, Val

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6