Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers at pH values around neutrality if their concentration is kept low at pH values around any of their pKa's only in combination with polyprotic bases at pH values around neutrality if their concentration is kept low at pH values around any of their pKa's only in combination with polyprotic bases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reason that fats contain more energy than simple sugars, is fats have many more hydrogen bonds carbon atoms hydrogen atoms covalent bonds hydrogen bonds carbon atoms hydrogen atoms covalent bonds ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Salt dissolves well in water as water molecules share electrons with the ions to make polar covalent bonds surround the ions because of their charge but do not form hydrogen bonds form hydrogen bonds with the positively and negatively charged ions make nonpolar covalent bonds with the positively charged ions only share electrons with the ions to make polar covalent bonds surround the ions because of their charge but do not form hydrogen bonds form hydrogen bonds with the positively and negatively charged ions make nonpolar covalent bonds with the positively charged ions only ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The dissociation constant of H2O at 25° C is 10-14 M 1014 M 107 M 10-7 M 10-14 M 1014 M 107 M 10-7 M ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule carry a partial negative charge are not important for the properties of water carry a partial positive charge form covalent bonds in ice carry a partial negative charge are not important for the properties of water carry a partial positive charge form covalent bonds in ice 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? 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 It will act as a buffer and stabilize the pH ANSWER DOWNLOAD EXAMIANS APP
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