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 Noncovalent bonds may also be present, especially if the molecule is large The chemical bonds that hold the molecule together are relatively strong Such molecules often result from the interaction of ionized atoms Electrons are shared between the atoms that make up the molecule Noncovalent bonds may also be present, especially if the molecule is large The chemical bonds that hold the molecule together are relatively strong ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Who discovered and described the blood groups (ABO) classification? Karl Landsteiner Otto Warburg Karl Hooper Theodor Kocher Karl Landsteiner Otto Warburg Karl Hooper Theodor Kocher ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Weak acids generally have pKa 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 values less than 1 that cannot be used to buffer ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The dissociation constant of H2O at 25° C is 10-14 M 10-7 M 107 M 1014 M 10-14 M 10-7 M 107 M 1014 M ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Buffer solutions tend to maintain a relatively constant pH. cause a decrease in pH when acids are added to them. are rarely found in living systems will always have a pH of 7 tend to maintain a relatively constant pH. cause a decrease in pH when acids are added to them. are rarely found in living systems will always have a pH of 7 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following organic groups are found in naturally occuring amino acids? Indole Guanidinium ion All of these Imidazole Indole Guanidinium ion All of these Imidazole ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS