Which physical property is being used to separate the mixtures in each of the following cases? a) a magnet is used to separate iron filings from sand. b) fat is skimmed off the top of a sauce. c)a sample of ocean water boiled until only salt remains.

What is the formula for the molecular compound nitrogen monoxide

List four observations that indicate that a chemical reaction may be taking place

Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d