Quiz for Solutions, Acid, & Bases Test |
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Question 1
| Multiple-choice | |
What does "like dissolve like" mean? | |
| Select the best answer | |
Axons of most mammalian neurons are surrounded by a multilayered coating. |
They will completely dissociate (completely separate into ions) when added to water. |
polar solvent dissolves polar solute, non-polar solvent dissolves non-polar solute. |
Greatly increases speed of nerve impulse conduction. Also, response to stimuli gets more rapid and coordinated. |
| Multiple-choice | |
Hyperpolarization | |
| Select the best answer | |
They will completely dissociate (completely separate into ions) when added to water. |
They will only partially dissociate (partly separate into ions) when added to water. |
The process by which the membrane potential of a cell changes to become more negative than its resting membrane potential. |
As solute ions breaks away from the crystal, the positive and negative charged ions become surrounded by the solvent molecules and the ionic crystal lattice. |
| Multiple-choice | |
4 types of neuroglias in cns | |
| Select the best answer | |
Depolarization/Threshold |
astrocytes, oligodendrocytes, microgli, ependymal. |
Increases the kinetic energy |
material being dissolves |
| Multiple-choice | |
What is the defining feature of a strong acid & strong base? | |
| Select the best answer | |
substance that produces an OH- ions when dissolved in water. |
combination of solute dissolved in solvent. |
substance that produces H+ ions when dissolved in water. |
They will completely dissociate (completely separate into ions) when added to water. |
| Multiple-choice | |
Repolarization | |
| Select the best answer | |
Taste sour, will change color of an acid-base indicator, can be strong electrolytes in aqueous solution, and can be weak electrolytes in aqueous solution. |
a solution that contains more solute than it can theoretically hold at a given temp. (too much solute so cannot melt/become a solution) |
A change in membrane potential returning to the initial resting (polarized) state; cell interior becomes relatively more negative than cell exterior. (Na+ gates close not allowing them to pass through, K+ passes through). |
The process by which the membrane potential of a cell changes to become more negative than its resting membrane potential. |
| Multiple-choice | |
Bronsted-Lowry Acid | |
| Select the best answer | |
Increases surface area. |
Resting Potential |
Increases the kinetic energy |
substance that is an H+ ion donor. |
| Multiple-choice | |
Saturated Solution | |
| Select the best answer | |
a solution that contains the maximum amount of solute for a given amount of solvent at a constant temp and pressure. (the perfect amount that is needed) |
Taste bitter, will change color of an acid-base indicator, feels slippery, and can be strong or weak electrolytes in aqueous solution. |
The process by which the membrane potential of a cell changes to become more negative than its resting membrane potential. |
As solute ions breaks away from the crystal, the positive and negative charged ions become surrounded by the solvent molecules and the ionic crystal lattice. |
| Multiple-choice | |
How does Particle Size affect the solubility of a solute? | |
| Select the best answer | |
substance that is an H+ ion donor. |
Increases surface area. |
Increases the kinetic energy |
Hyperpolarization |
| Multiple-choice | |
How does Temperature affect the solubility of a solute? | |
| Select the best answer | |
material doing the dissolving |
Increases the kinetic energy |
material being dissolves |
Increases rate of the collision. |
| Multiple-choice | |
What happens, from a molecular point-of-view, to a crystal lattice during the solvation process? | |
| Select the best answer | |
a solution that contains more solute than it can theoretically hold at a given temp. (too much solute so cannot melt/become a solution) |
The process by which the membrane potential of a cell changes to become more negative than its resting membrane potential. |
Taste bitter, will change color of an acid-base indicator, feels slippery, and can be strong or weak electrolytes in aqueous solution. |
As solute ions breaks away from the crystal, the positive and negative charged ions become surrounded by the solvent molecules and the ionic crystal lattice. |
