Apr 01, 2015
01. In a solution, the substance that is doing the dissolving is the ___.
SOLVENT
02. A solution that contains all the solute it can hold at a given temperature is ___.
SATURATED
03. Increasing the surface area of a solid ___ the rate of solution.
INCREASES
04. When a gas is dissolved in a liquid, the gas dissolves faster if the temperature of the liquid is ___.
LOWER OR COOLER
05. The concentration of a solution that contains much solute in the solvent could be described as ____.
CONCENTRATED
06. Adding more solute to a solvent ___ its freezing point.
DECREASES
07. A molecule that is positively charged on one end and negatively charged on the other end is ___.
POLAR
08. The amount of solute that can be dissolved in a specific amount of solvent at a given temperature is its ___.
SOLUBILITY
09. Different substances have ___ solubilities.
DIFFERENT
10. A crystal of a solute was dropped into a solution and it dissolved. The original solution was ___.
UNSATURATED
11. A solution with a bitter taste and a slippery feel is most likely a(n) ___.
BASE
12. Decreasing temperature ___ the rate of solution for a gas in a liquid.
INCREASES
13. The dissolving of a solid in a liquid takes place at the solid’s ___.
SURFACE
14. The type of solution depends on the state of the ___.
SOLVENT
15. A solid dissolves faster when it is ground because grinding ___ surface area.
INCREASES
16. A gas dissolves in a liquid most rapidly when under ___ pressure.
HIGH OR HIGHER
17. A supersaturated solution is ___ stable than a saturated solution.
LESS
18. Organic substances that change color in the presence of an acid or base are called
INDICATORS
19. A substance that produces H+ ions in solution is a(n) ___.
ACID
20. A substance that produces OH- ions in solution is a(n) ___.
BASE
21. If a crystal of solute is dropped into a solution and other crystals appear, the solution was ___.
SUPERSATURATED
22. A compound formed in solution from the negative ion of an acid and the positive ion of a base is a a(n) ___.
SALT
23. The terms dilute and concentrated refer to the ___ of a solution.
STRENGTH
24. A reaction between an acid and a base that produces a salt and water is a ___ reaction.
NEUTRALIZATION
25. A substance with a pH of 2 would be classified as a ___.
STRONG ACID
26. Coffee has a pH of about 5. Coffee is slightly ___.
ACIDIC
27. Strong acids have ___ pH values than do weaker acids.
LOWER
28. On the pH scale, a solution with a pH 7 is ___.
NEUTRAL
29. Strong acids produce large numbers of ___.
H+ IONS
30. Increasing the temperature increases the ___ of a solid solute in a solvent.
SOLUBILITY
31. Adding a solute to a solvent ___ the freezing point of the solvent.
DECREASES
32. Adding a solute to a solvent ___ the boiling point of the solvent.
RAISES
33. The products of neutralization are a(n) ___ plus water.
SALT
34. Because grease is ___ it cannot be dissolved in water.
NONPOLAR
35. The dissolving of a ___ in a liquid takes place at the solid’s surface.
SURFACE
36. Stirring decreases the rate of a(n) ___ going into solution in a liquid solvent.
GAS
37. A solution is a ___ that appears uniform throughout and whose particles cannot easily be separated.
MIXTURE
38. At room temperature, a supersaturated solution would contain a ___ percent of solute than a saturated solution of the same substance.
HIGHER
39. Geologists use ___ acid (HCl) to test for the presence of carbonates in limestone.
HYDROCHLORIC
40. You are most likely to find a ___ in household cleaners.
BASE
41. ___ naturally present in food are safe to eat because they are usually weak.
ACIDS
42. The amount of solute that can be dissolved in a specific amount of solvent at a given ___ is its solubility.
TEMPERATURE
43. Grinding a solid solute into smaller particles increases surface area and ___ the rate at which the solute goes into solution.
SURFACE
44. Sodium hydroxide (NaOH), a very strong ___, is the active ingredient in some drain cleaners.
BASE
45. When 37 grams of potassium chloride (KCl) forms a solution by being added to 100 grams of water, the potassium chloride (KCl) is the ___.
SOLUTE
The last five questions are true or false.
46. Adding antifreeze to a car radiator decreases the boiling point of the water in the radiator.
FALSE
47. For acidic solutions of equal concentration, the stronger the acid, the lower the pH; for basic solutions of equal concentration, the stronger the base, the higher the pH.
TRUE
48. Concentration involves the relative amounts of solvent and solute in a solution.
TRUE
49. Common bases include hydrochloric acid, sulfuric acid, nitric acid, and phosphoric acid.
FALSE
50. An acid is a substance that produces hydrogen ions, H+, in solution.
TRUE