Water, pH and Macromolecules Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages. ionic noncovalent hydrogen covalent ionic noncovalent hydrogen covalent ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule carry a partial positive charge form covalent bonds in ice are not important for the properties of water carry a partial negative charge carry a partial positive charge form covalent bonds in ice are not important for the properties of water carry a partial negative charge ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reactions of molecules 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 require an enzyme in all cases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? H2CO3/HCO3- All of these Histidine+/histidine H2PO4-/HPO42- H2CO3/HCO3- All of these Histidine+/histidine H2PO4-/HPO42- ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Weak acids generally have pKa values less than 1 that cannot be used to buffer pKa values greater than 2 been seldom found in living systems values less than 1 that cannot be used to buffer pKa values greater than 2 been seldom found in living systems ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The pH of a solution is determined by dielectric constant of the medium concentration of salt environmental effect relative concentration of acids and bases dielectric constant of the medium concentration of salt environmental effect relative concentration of acids and bases ANSWER DOWNLOAD EXAMIANS APP
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