The main difference between an acid and a base is that bases are polar molecules and acids are not acids donate hydrogen ions in water while bases accept hydrogen ions bases donate hydrogen ions in water while acids accept hydrogen ions acids are polar molecules and bases are not TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following will easily dissolve in a polar solvent? gasoline (heptanes & octanes) argon sodium chloride methane TRUE ANSWER : ? YOUR ANSWER : ?
Buffer solutions 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 TRUE ANSWER : ? YOUR ANSWER : ?
The lone pair electrons on oxygen in a H20 molecule form covalent bonds in ice are not important for the properties of water carry a partial positive charge carry a partial negative charge TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following alcohols would be most soluble in water? butanol methanol ethanol octanol TRUE ANSWER : ? YOUR ANSWER : ?
Weak acids generally have pKa values less than 1 pKa values greater than 2 that cannot be used to buffer been seldom found in living systems TRUE ANSWER : ? YOUR ANSWER : ?
The effectiveness or capacity of a buffer solution can be affected by temperature of buffer components both (a) and (b) molar concentration of the buffer components concentration of the conjugate base to the weak acid TRUE ANSWER : ? YOUR ANSWER : ?
Hydrogen bonds and hydrophilic interactions are types of strong chemical bonds that hold together the atoms within a molecule strong chemical bonds that link together separate molecules weak chemical bonds that link together separate molecules weak chemical bonds that hold together the atoms within a molecule TRUE ANSWER : ? YOUR ANSWER : ?
If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water? It will act as a buffer and stabilize the pH It will form a membrane in water be repelled by water It will be attracted to water TRUE ANSWER : ? YOUR ANSWER : ?