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HW#1 - bond of 2 non-metal atoms with the same...

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Chad Bible Biology 201 Jan. 29, 2011 Homework #1 1a. Mice that maintain a normal diet and take a 50 mg supplement of vitamin C will not be at a less risk to get cancer than other mice that don’t receive a 50 mg supplement of vitamin C. 1b. The amount of carcinogens exposed to each mouse, the diet of each mouse, and the amount of interaction to each mouse. 1c. Independent variable: 50 mg supplement of vitamin C. Dependent variable: developing cancer. 2a. 12 2b. 2 2c. MgCl2 2d. Magnesium has a charge of 2+ and Chlorine has a charge of 1- so when they bond together there is a 2 to 1 ratio; therefore, you need 2 Chlorines in order for Magnesium to form a bond. 3. A polar bond is a bond of 2 non-metal atoms, with different electronegativities, resulting in an unequal sharing of the bonded electron pair. A non-polar bond is also a
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Unformatted text preview: bond of 2 non-metal atoms, with the same electronegativity, resulting in an equal sharing of the bonded electron pair. So the electronegativity of 2 non-metal atoms determines whether the bond is either polar or non-polar. 4. Hydrophilic substances like water and are normally charged or polar compounds. Whereas hydrophobic substances don’t like water and are normally non-polar. Substances are hydrophilic when a molecule is likely to form a bond with the Hydrogen molecule in water. Substances are hydrophobic when a molecule repels water and aren’t soluble in water. 5. Ethanol is more hydrophilic because the hydroxyl group on the ethanol can form bonds with water molecules. Also, ethanol is polar while ethane is non-polar; therefore, ethanol is going to be more hydrophilic....
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