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 does not dissolve well in water is probably held together by noncovalent bonds contains at least some polar covalent bonds should act as a good buffer for acids and bases does not dissolve well in water is probably held together by noncovalent bonds contains at least some polar covalent bonds ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The pH of a solution is determined by concentration of salt relative concentration of acids and bases dielectric constant of the medium environmental effect concentration of salt relative concentration of acids and bases dielectric constant of the medium environmental effect 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 Which of the following acid/base pairs act as natural buffers in living systems? H2PO4-/HPO42- All of these Histidine+/histidine H2CO3/HCO3- H2PO4-/HPO42- All of these Histidine+/histidine H2CO3/HCO3- ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water? It will act as a buffer and stabilize the pH be repelled by water It will be attracted to water It will form a membrane in water It will act as a buffer and stabilize the pH be repelled by water It will be attracted to water It will form a membrane in water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The main difference between an acid and a base is that bases donate hydrogen ions in water while acids accept hydrogen ions bases are polar molecules and acids are not acids donate hydrogen ions in water while bases accept hydrogen ions acids are polar molecules and bases are not bases donate hydrogen ions in water while acids accept hydrogen ions bases are polar molecules and acids are not acids donate hydrogen ions in water while bases accept hydrogen ions acids are polar molecules and bases are not ANSWER DOWNLOAD EXAMIANS APP
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