Pour 4 mL of hydrogen peroxide into a clean test tube and obtain a small amount of manganese dioxide. (Manganese dioxide is a catalyst, something used to increase the speed of a reaction but is not used up or
produced in the reaction.)

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

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".

answerleaving cheese out to get moldy;