Select the correct answer from each drop-down menu. A certain atom has 22 protons and 19 electrons. This atom loses an electron. The net charge on the atom is now . If this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be .

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".