(Solved): Red blood cells contain 0.9%NaCl. Which solution is hypertonic to a red blood cell? 0.5%NaCl 0.9%Na ...

Red blood cells contain $0.9\%\mathrm{NaCl}$. Which solution is hypertonic to a red blood cell? $0.5\%\mathrm{NaCl}$ $0.9\%\mathrm{NaCl}$ $10\%\mathrm{NaCl}$ $2\%$ glucose water QUESTION 15 The reason why a hot air balloon goes up in the air is that the number of air molecules inside the balloon increases. the hot air inside the balloon is less dense. the pressure inside the balloon increases. All of the above QUESTION 16 The temperature at which a liquid boils is the boiling point of the liquid. The boiling point is an indication of the intermolecular forces that hold the matter in the liquid state. Rankthe following liquids from the strongest to the weakest intermolecular forces? (Strongest first) Water, ${\mathrm{H}}_2\mathrm{O}$, methane, ${\mathrm{CH}}_4$, and methanol, ${\mathrm{CH}}_3\mathrm{OH}$. water $>$ methanol $>$ methane water $>$ methane $>$ methanol methane $>$ water $>$ methanol methanol > methane > water When an ionic compound dissolves in water, the negative ends of water molecules surround the negative ions. the positive ends of water molecules surround the positive ions. the negative ends of water molecules surround the positive ions. the negative ends of water molecules surround both the negative and the positive ions: QUESTION 18 Which of the following is NOT a postulate of the kinetic-molecular theory? The molecules in a gas are tiny compared to the distance between them. If two molecules collide with each other, the total energy of the molecules before the colision is the same as their total energy affer the collision. Molecules of a gas move rapidly and in straight lines. The molecules of a gas are strongly attracted to each other. QUESTION 19 Which of the following pairs of compounds exhibit hydrogen bonding? ${\mathrm{NH}}_3$ and ${\mathrm{CH}}_4$ ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$ and ${\mathrm{H}}_2\mathrm{O}$ ${\mathrm{CH}}_3{\mathrm{CH}}_3$ and ${\mathrm{H}}_2\mathrm{O}$ ${\mathrm{H}}_2\mathrm{O}$ and ${\mathrm{CH}}_4$