Water, pH and Macromolecules Which of the following statements about water is correct? Polar substances that can form hydrogen bonds will dissolve in it All of these Nonpolar substances like oils are not soluble in it It is critical for many of the chemical processes found in living systems Polar substances that can form hydrogen bonds will dissolve in it All of these Nonpolar substances like oils are not soluble in it It is critical for many of the chemical processes found in living systems ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Buffer solutions are rarely found in living systems cause a decrease in pH when acids are added to them. tend to maintain a relatively constant pH. will always have a pH of 7 are rarely found in living systems cause a decrease in pH when acids are added to them. tend to maintain a relatively constant pH. will always have a pH of 7 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The main difference between an acid and a base is that acids are polar molecules and bases are not bases donate hydrogen ions in water while acids accept hydrogen ions acids donate hydrogen ions in water while bases accept hydrogen ions bases are polar molecules and acids are not acids are polar molecules and bases are not bases donate hydrogen ions in water while acids accept hydrogen ions acids donate hydrogen ions in water while bases 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 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 carry a partial negative charge ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reactions of molecules 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 All of these ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7? 1 x 10-7 5 x 10-7 7 x 10-7 7 1 x 10-7 5 x 10-7 7 x 10-7 7 ANSWER DOWNLOAD EXAMIANS APP
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