You have a rock with a density of 9,00x 10 gL, and a mass of 2 Kg. What is the volume of the rock? (Notice you have to change the units first).
a. 1.8x 10' mt. b. 5.55x 10° mt. e. 2.22 x 10 m. d. 4.5 x 10 ml.
e 88x10 m. ab, S.55 x 10° mt ac. 2.22 x 10 m. ad. 1.8 x 10* mt.

2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Which element is the least metallic between cadmium, silver, zinc, or iron?