Explain this trend in melting points. Match the words in the left column to the appropriate blanks in the sentences on the right. ResetHelp Moving across the fourth period from Ca to V , the number of valence electrons Moving across the fourth period from \rm Ca to \rm V , the number of valence electrons blank, with \rm V having a total number of blank valence electrons., with V having a total number of Moving across the fourth period from \rm Ca to \rm V , the number of valence electrons blank, with \rm V having a total number of blank valence electrons. valence electrons. More valence electrons up to a maximum of six mean the occupancy of the bonding molecular orbital band , and thus the strength of the metallic bonding . Stronger metallic bonds are associated with in melting points.

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor