Water, pH and Macromolecules The elements oxygen, nitrogen, and carbon are common elements in the molecules that make up living organisms can all form covalent bonds with other elements All of these contain protons and neutrons in their atomic nuclei are common elements in the molecules that make up living organisms can all form covalent bonds with other elements All of these contain protons and neutrons in their atomic nuclei ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Weak acids generally have pKa 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 values less than 1 that cannot be used to buffer been seldom found in living systems ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A compound that is capable of forming hydrogen bonds with water contains at least some polar covalent bonds is probably held together by noncovalent bonds should act as a good buffer for acids and bases does not dissolve well in water contains at least some polar covalent bonds is probably held together by noncovalent bonds should act as a good buffer for acids and bases does not dissolve well in water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers 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 at pH values around any of their pKa's ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The main difference between an acid and a base is that 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 bases donate hydrogen ions in water while acids accept hydrogen ions bases are polar molecules and acids are not ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule 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 form covalent bonds in ice carry a partial positive charge ANSWER DOWNLOAD EXAMIANS APP
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