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Question 2Question 2 options:TrueFalseQuestion 3 Question 3 options:TrueFalseQuestion 4 Question 4 options:A) 

Bases react with active metals to produce hydrogen gas.

Aqueous solutions of acids and bases conduct electricity.

A titration is a precise technique in volumetric analysis (based on colorimetry and volumetry). Which of the following should be used to dispense a precise volume of liquid. ?  

volumetric flask


B) 

graduated cylinder


C) 

pipette


D) 

burette


Question 5 

Which of the following solvents is often described as the universal solvent?

Question 5 options:


A) 

hydrochloric acid


B) 

water


C) 

ethanol


D) 

carbon tetrachloride


Question 6 

Solutions have a fixed composition. This means that the amount of solute in a fixed amount solvent is always the same.

Question 6 options:

True

False


Question 7

96.3 g of potassium iodate is used to prepare 300.0 mL of solution. What is the molar concentration of the solution?

Question 7 options:


A) 

5.7 mol/L


B) 

7.4 mol/L


C) 

1.5 mol/L


D) 

1.9 mol/L


Question 8 

Which factor does not affect the rate of dissolving?

Question 8 options:


A) 

agitation


B) 

amount of solvent


C) 

particle size


D) 

temperature


Question 9

One thousand parts per billion equals one part per million.

Question 9 options:

True

False


Question 10 

A solution with a pH of 3.4 is three times more acidic than a solution with a pH

of 6.4.

Question 10 options:

True

False


Question 11 

Water and oil-based paint are said to be miscible.

Question 11 options:

True

False


Question 12 

Decreasing the size of bluestone (copper (II) sulphate pentahydrate) crystals by

crushing them allows more bluestone to dissolve in the same amount of water.

Question 12 options:

True

False


Question 13 

Solid solutions of metals are called alloys.

Question 13 options:

True

False


Question 14 

Solubility is affected by: agitation, temperature, and pressure.

Question 14 options:

True

False


Question 15 

Preparing a 0.35 mol/L solution of calcium chloride, you add 19.4 g of CaCl2 to

enough water to form 500 mL of solution.

Question 15 options:

True

False


Question 16


A pH of 3.0 means that the concentration of hydrogen ions is 3.0 x 10-7 mol/L.

Question 16 options:

True

False


Question 17 

When a solution is made, there is no chemical reaction. The solution can be

separated into its components mechanically (evaporation).

Question 17 options:

True

False


Question 18 

When an acid solution is diluted, the pH of the solution increases.

Question 18 options:

True

False


Question 19 (1 point)


A mass/volume percentage gives the mass of a solute dissolved in a volume of

a solution, expressed as a percent.

Question 19 options:

True

False


Question 20 (1 point)


Which term describes a substance that is able to conduct electricity in an

aqueous solution?

Question 20 options:


A) 

miscible


B) 

immiscible


C) 

electrolyte


D) 

non-electrolyte


Question 21 


Which statement about water is false?

Question 21 options:


A) 

It is made up of a polar molecule.


B) 

It dissolves most polar compounds.


C) 

It dissolves most non-polar compounds.


D) 

It dissolves most ionic compounds.


Question 22 


A polar solvent cannot dissolve ionic and polar solutes.

Question 22 options:

True

False


Question 23 

Concentration is the amount of solute per quantity of solvent.

Question 23 options:

True

False


Question 24

Acids are dangerous because they are corrosive, but bases are not as

dangerous.

Question 24 options:

True

False


Question 25 


Which of the following properties is not characteristic of an acid?

Question 25 options:


A) 

turns phenolphthalein pink


B) 

turns litmus paper red


C) 

conducts electricity


D) 

reacts with an active metal to produce hydrogen gas


Question 26 

What is the net ionic equation for the following reaction?

SrCl2 + MgSO4 ----> SrSO4 + MgCl2

Question 26 options:


A) 

Sr2+ + Cl- ----> SrCl2


B) 

Sr2+ + SO42- ----> SrSO4


C) 

Mg2+ + SO4 ----> MgSO4


D) 

Mg2+ + Cl- ----> MgCl2


Question 27 

A solution is a heterogeneous mixture because it is composed it two

substances, called the solute and the solvent.

Question 27 options:

True

False


Question 28 

A(n) _________ solution is formed when no more solute will dissolve in a given solution and excess solute is present. A(n) ______ solution is still able to dissolve more solute.

Question 28 options:


A) 

saturated, unsaturated


B) 

solute, solvent


C) 

acidic, basic


D) 

strong, weak


Question 29 

A(n) ______ solution is a solution in which water is used as the solvent.

Question 29 options:


A) 

homogeneous


B) 

heterogeneous


C) 

aqueous


D) 

universal


Question 30 


In a _______, the concentration of a solution is determined quantitatively by

observing and measuring the reaction of the solution with a second solution of

known concentration.

Question 30 options:


A) 

volumetric reaction


B) 

precipitation


C) 

neutralization


D) 

titration


Question 31 

26.9 g of silver nitrate is dissolved in sufficient water to make 250 mL of

solution. The solution's molarity is:

Question 31 options:


A) 

0.108 M


B) 

0.158 M


C) 

0.633 M


D) 

0.780 M


Question 32 

What mass of magnesium chloride, MgCl2 must be dissolved in 100.0 mL of

water to produce a 2.5 M solution?

Question 32 options:


A) 

1.494 g


B) 

14.94 g


C) 

23.80 g


D) 

38.08 g


Question 33

In a neutralization reaction, an acid and a base react to form:

Question 33 options:


A) 

a precipitate and a gas


B) 

a salt and water


C) 

an acid and a base


D) 

a solute and a solvent


a salt and water


C) 

an acid and a base


D) 

a solute and a solvent

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Subject: Chemistry, Science
Question 2 Bases react with active metals to produce hydrogen gas. Question 2 options: True False Question 3 Aqueous solutions of acids and bases
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