Water, pH and Macromolecules The main difference between an acid and a base is that acids are polar molecules and bases are not bases are polar molecules and acids are not acids donate hydrogen ions in water while bases accept hydrogen ions bases donate hydrogen ions in water while acids accept hydrogen ions acids are polar molecules and bases are not bases are polar molecules and acids are not acids donate hydrogen ions in water while bases accept hydrogen ions bases donate hydrogen ions in water while acids accept hydrogen ions ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reason that fats contain more energy than simple sugars, is fats have many more carbon atoms hydrogen bonds covalent bonds hydrogen atoms carbon atoms hydrogen bonds covalent bonds hydrogen atoms ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following statements about covalently bonded molecules is false? Such molecules often result from the interaction of ionized atoms Electrons are shared between the atoms that make up the molecule The chemical bonds that hold the molecule together are relatively strong Noncovalent bonds may also be present, especially if the molecule is large Such molecules often result from the interaction of ionized atoms Electrons are shared between the atoms that make up the molecule The chemical bonds that hold the molecule together are relatively strong Noncovalent bonds may also be present, especially if the molecule is large ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reactions of molecules require an enzyme in all cases All of these are the reactions of the functional groups are independent of the functional groups require an enzyme in all cases All of these are the reactions of the functional groups are independent of the functional groups ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers at pH values around any of their pKa's if their concentration is kept low at pH values around neutrality only in combination with polyprotic bases at pH values around any of their pKa's if their concentration is kept low at pH values around neutrality only in combination with polyprotic bases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A compound that is capable of forming hydrogen bonds with water should act as a good buffer for acids and bases is probably held together by noncovalent bonds contains at least some polar covalent bonds does not dissolve well in water should act as a good buffer for acids and bases is probably held together by noncovalent bonds contains at least some polar covalent bonds does not dissolve well in water ANSWER DOWNLOAD EXAMIANS APP
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