The best explanation for the dissolution of zns in dilute hcl is that a. the sulfide ion concentration is decreased by the formation of h2s. b. the zinc ion is amphoteric. c. the zinc ion concentration is decreased by the formation of a chloro complex. d. the sulfide ion concentration is decreased by oxidation to sulfur. e. the solubility product of zncl2 is less than that of zns.

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

Which statement best explains the relationship between an area is geography and the temperature of its surface water

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?