7-3 Wrong Again. For each of the following false statements, change the statement to make it true and explain your reasoning. (a) Because membranes have a hydrophobic interior, polar and charged molecules cannot pass through membranes. (b) Different cellular organelles have membranes with an identical chemical composition. (c) Glycoproteins are proteins containing oligosaccharide chains which protrude from the inner membrane. (d) Membrane fluidity is affected by temperature. When temperature decreases, membrane fluidity increases, and the temperature at which this occurs is known as the transition temperature (Tm). (e) You would expect membrane lipids from tropical plants such as palm and coconut to have

What is avogadro’s number, and why is it useful

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

Based on its chemical properties, identify the position of each chemical family on the periodic table.