This is another term for chemical change; it’s involves combining different substances and producing a new substance.

A. Fireworks

B. Chemical Reaction

C. Chemical Change

D. Energy

the correct answer is:

a. formation of precipitation

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".