Which best compares a molecule that has a trigonal planar shape with one that has a trigonal pyramidal shape?
they both contain three lone pairs of electrons around the central atom.
they both contain three atoms around the central atom.
the central atom of the trigonal planar molecule has two lone pairs around it, but the central atom of the trigonal pyramidal molecule has only one.
the central atom of the trigonal planar molecule has two atoms around it, but the central atom of the trigonal pyramidal molecule has only one.

Why are the trends and exceptions to the trends in ionization energy observed?

What is the correct lewis structure for chloroform chcl3

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