Will give 'brainiest' / will give '5 stars' / will give ' you'! 15. metallic bonds form between * 1 point cations and protons anions and protons cations and anions cations and electrons 16. what is the formula for lithium nitride? * 1 point lin li2l3 li3n lin3 17. which type of solid is likely to be the best conductor of electricity? * 1 point nonmetal element ionic compound covalent compound metal element 18. when an atom gains an electron, it forms a * 1 point anion cation polyatomic ion neutral ion 19. mg3p2 - which element is the cation? * 1 point mg p mg3p2 p2 20. which of the following has the highest melting point? * 1 point metallic compound ionic compound covalent compound 21. what statement is true about carbon-12 and carbon-14? * 1 point they have different number of protons they are isotopes of carbon they have the same mass number they have an identical mass 22. what is the name of the phase change that occurs when a substance changes from a gas to a liquid? * 1 point evaporation condensation freezing melting

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