BIOL 1107 Lecture 1: BIO 1107 Week 1
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6 Jan 2018
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Ionic bonds are formed when two opposite charged ions (formed when atoms lose or gain electrons) encounter each other. These bonds can be viewed as Ć¢ĀĀextreme polar covalent bondsĆ¢ĀĀ as one atom is in total control of the otherĆ¢ĀĀs electron(s). Why are ionic bonds so much weaker when they are in water?
A. | Ionic compounds such as salts are hydrophilic, so they prefer to form bonds with water molecules over other compounds. |
B. | Water molecules readily form covalent bonds to charged particles and, as these bonds are stronger than ionic bonds, the ionic bonds are pulled apart. |
C. | Water molecules shorten the size of covalent bonds and this weakens ionic interactions. |
D. | Water molecules readily donate electrons and nullify the positively charged ions. |
E. | Polar water molecules can physically interfere with the polar (positive/ negative) charged attraction between ions and thus the ionic bonds are disrupted and weakened. |