BCH210H1 Chapter Notes -Reaction Rate, Bounded Function, Cellular Respiration

Which of the following is hydrophobic? A Molecules containing non-polar covalent bonds only B. Molecules containing polar covalent or ionic bonds. C. Molecules containing polar covalent bonds only D. Molecules containing ionic bonds only Acids: A lose protons in water to gain a negative charge. B. lose protons in water to gain a positive charge. C. gain protons in water to gain a positive charge. D. gain protons in water to gain a negative charge. Which of the following Is an organic molecule? A. Water B Hydrogen gas (H2) A hydrocarbon D. Ammonia (NH3) Which of the following statements is FALSE? A. Carbohydrates are hydrophilic molecules. B. living things use carbohydrates for structure and for energy storage. C. Carbohydrates are composed principally of carbon hydrogen and oxygen D. Carbonhydrates are unable to dissolve in water.

1) Draw the Lewis Dot Structure for a molecule that has: 5 Carbon atoms 7 Hydrogen atoms 3 Chlorine atoms 2 Oxygen atoms 1 Carbon Oxygen double bond 2 Carbon Oxygen single bonds All the rest of the bonds are single bonds The molecule will have six polar covalent bonds, and 26 lone-pair electrons (13 pairs) Draw the molecule, with all the attributes above, and show which bonds are polar covalent.