WorksheetsTest Review – Solutions & Acids / Bases
Total questions: 35
Worksheet time: 25mins
What term describes a substance in solution that conducts an electric current?
Electrolyte
Solvent
Insulator
Colloid
In order to conduct electricity, a solution must contain ________________.
ions
molecules
atoms
electrons
If a substance dissolved in water does not conduct an electric current, then it is called a ________________.
nonelectrolyte
electrolyte
conductor
semiconductor
What are 3 things you can do to increase the rate of dissolving a solid in water?
The rule “like dissolves like” is used to predict: phases, reactivity, equilibrium, or solubility?
solubility
phases
reactivity
equilibrium
Name a polar solvent. What types of things will dissolve in that solvent?
Water; polar and ionic substances
Hexane; nonpolar substances
Oil; nonpolar substances
Benzene; nonpolar substances
Pressure has the greatest effect on the solubility of ________________.
gases
solids
liquids
alloys
How can you dissolve the maximum amount of gas in a solution?
Increase pressure and decrease temperature
Decrease pressure and increase temperature
Increase pressure and increase temperature
Decrease pressure and decrease temperature
What is the name of Ca(OH)₂?
Calcium hydroxide
Calcium oxide
Calcium carbonate
Calcium sulfate
Who will dissolve the fastest: sugar cubes in cold water, sugar cubes in hot water, powdered sugar in cold water, powdered sugar in hot water?
sugar cubes in cold water
sugar cubes in hot water
powdered sugar in cold water
powdered sugar in hot water
Who will dissolve the slowest: sugar cubes in cold water, sugar cubes in hot water, powdered sugar in cold water, powdered sugar in hot water?
Acids taste ____________.
sour
sweet
bitter
salty
Acids turn litmus paper ____________.
red
blue
green
yellow
True or false...acids conduct electricity.
True
False
Bases taste ____________.
bitter
sweet
sour
salty
Bases feel ________________.
slippery
rough
sticky
hot
Bases turn litmus paper ________________.
blue
red
green
yellow
According to the Arrhenius definition, an acid must produce ________________ in water.
H+ ions (hydrogen ions)
OH- ions (hydroxide ions)
Na+ ions (sodium ions)
Cl- ions (chloride ions)
According to the Arrhenius definition, a base must produce ________________ in water.
OH- ions (hydroxide ions)
H+ ions (hydrogen ions)
Na+ ions (sodium ions)
Cl- ions (chloride ions)
If a substance completely dissociates into ions, then it is a ________________.
strong electrolyte
weak electrolyte
non-electrolyte
insulator
A substance that is a proton acceptor (aka, accepts H+ ions) can be classified as a bronsted-lowry ____________.
base
acid
salt
oxidizer
What is the pH if the solution is neutral?
7
1
10
14
What is the pH range for acids?
0-6.9
7-14
6.9-14
7-10
What is the pH range for bases?
7.1-14
0-7
6-7
1-6
When naming an acid, if the polyatomic ion ends in –ite, then the acid name ends in ______.
-ous
-ic
-ate
-ide
When naming an acid, if the polyatomic ion ends in –ate, then the acid name ends in _______.
-ate
-ous
-ide
What is the name of HI? HNO3? KOH?
HI: Hydroiodic acid, HNO3: Nitric acid, KOH: Potassium hydroxide
HI: Hydrochloric acid, HNO3: Nitrous acid, KOH: Sodium hydroxide
HI: Hydrobromic acid, HNO3: Nitric acid, KOH: Potassium carbonate
HI: Hydrofluoric acid, HNO3: Nitric acid, KOH: Calcium hydroxide
How many grams of KCl must be dissolved in 200 g of water to make a saturated solution at 40°C?
Approximately 68 g
Approximately 34 g
Approximately 100 g
Approximately 17 g
How many grams of NaCl must be dissolved in 100 g of water to make a saturated solution at 60°C?
About 39 g
About 20 g
About 60 g
About 10 g
How many grams of KClO3 dissolves in 100 ml of water that is at 45°C?
About 20 g
About 5 g
About 50 g
About 100 g
If 45 g of KNO3 is dissolved in 100 g of water at 45°C, will it be saturated, unsaturated, or supersaturated?
Unsaturated
Saturated
Supersaturated
Nonsaturated
If 30 g of KNO3 is dissolved in 100 g of water at 20°C, will it be saturated, unsaturated, or supersaturated?
Supersaturated
Unsaturated
Saturated
Dilute
If 10 g of NaOH is dissolved in 450 g of water, which one is the solute and which one is the solvent?
If very little solute is dissolved in a large amount of solvent, the term for this would be ________.
dilute
concentrated
saturated
supersaturated
Warm water will hold (a) oxygen than cold water.
equal
