6.Given: Kr boils at 120.9 K and Cl2 boils at 238 K. Both would be considered non-polar and the London Forces are predicted to suggest the opposite boiling point trend (Kr has 83 electrons, Cl2 has 34 electrons). Thus, there must be something other than just the intermolecular forces involved. Draw a picture of the two species and think about how the drawings might give a clue. Have the group describe the ideas generated.

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices

Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next

110 g of water (specific heat = 4.184 j/g c) and 100 g of a metal sample (specific heat = 0.397 j/g c) are heated from 25 degrees c to 75 degrees c. which substance required more thermal energy?