Amuseum is creating an exhibit about cells. which type of exhibit would best explain what cells are? a. display a three-dimensional model of a cell. b. use a life-size drawing of a cell. c. put a cell on a poster in the exhibit. d. set up a microscope so that visitors can view cells.

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh