Water, pH and Macromolecules The strength of an acid depends on number of neutrons gain number of protons released number of double bonds electronegativity number of neutrons gain number of protons released number of double bonds electronegativity ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Weak acids generally have pKa values less than 1 that cannot be used to buffer been seldom found in living systems pKa values greater than 2 values less than 1 that cannot be used to buffer been seldom found in living systems pKa values greater than 2 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules H2O and CH4 are both examples of molecules none of these acids ions molecules none of these acids ions ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule form covalent bonds in ice carry a partial positive charge are not important for the properties of water carry a partial negative charge form covalent bonds in ice carry a partial positive charge are not important for the properties of water carry a partial negative charge ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following will easily dissolve in a polar solvent? gasoline (heptanes & octanes) sodium chloride argon methane gasoline (heptanes & octanes) sodium chloride argon methane ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers only in combination with polyprotic bases if their concentration is kept low at pH values around neutrality at pH values around any of their pKa's only in combination with polyprotic bases if their concentration is kept low at pH values around neutrality at pH values around any of their pKa's ANSWER DOWNLOAD EXAMIANS APP