Which of the following will result in a chemical change?
a. melting ice to obtain water
b. drying wood in a shed
c. burning coal in a furnace
d. evaporating alcohol into vapor

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".

the awnser is group 12