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General Chemistry - Chemistry I and Lab > Module 9 - Solutions V5 > Flashcards

Module 9 - Solutions V5 Flashcards

1
Q

Water is the solute in an aqueous solution.

A

false

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2
Q

What type of compound will be most soluble in water?

A

polar

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3
Q

Solutions can be formed with gaseous solvents.

A

true

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4
Q

Electrolytes can be cations or anions.

A

true

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5
Q

All covalent compounds will partially dissociate.

A

false

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6
Q

When lithium chloride, LiCl, is dissolved in water, what cation is produced?

A

Li+

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7
Q

Which of the following ions forms compounds that are always soluble in water?

A

nitrates

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8
Q

All compounds containing group 1A alkali metals are soluble in water.

A

true

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9
Q

Spectator ions are shown in net ionic equations.

A

false

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10
Q

The products of the exchange reaction that occur when BaSO4 and KCl are mixed together are BaCl2 and…

A

K2SO4.

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11
Q

PbSO4 is soluble in water.

A

false

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12
Q

All compounds containing nitrate are soluble.

A

true

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13
Q

The solubility of a solid increases as the solution is cooled.

A

false

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14
Q

Pentane, a nonpolar covalent compound, is insoluble in water.

A

true

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15
Q

Which solute would you expect to be insoluble in water? Recall, water is polar.

A

methane (nonpolar)

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16
Q

Solutions are formed when multiple pure substances mix chemically.

A

false

17
Q

A solution forms when a _____ dissolves in a ______.

A

solute; solvent

18
Q

When solute-solute interactions are disrupted, it is a(n) ______ process.

A

endothermic

19
Q

Solutions like steel and bronze are proof that…

A

solutions can be in any state of matter.

20
Q

Strong electrolytes…

A

dissolve completely in water and are strong conductors of electricity.

21
Q

The ability for a solution to conduct electricity is due to…

A

the number of ions present in the solution.

22
Q

Which reaction type occurs when hydrochloric acid reacts with sodium sulfide?

2 space H C I subscript open parentheses a q close parentheses end subscript plus N a subscript 2 S subscript open parentheses a q close parentheses end subscript rightwards arrow H subscript 2 S subscript open parentheses g close parentheses end subscript plus 2 space N a C l subscript open parentheses a q close parentheses end subscript

A

gas forming reaction

23
Q

Neutralization reactions are the only reactions that can produce water.

A

false

24
Q

Which reaction types form a solid product?

A

precipitation reactions

25
Q

One of the most basic and practical precipitation reactions occurs between table salt (NaCl) and water. What is the molecular equation for this reaction?

A

NaCl + H2O → NaOH + HCl

26
Q

The presence of alkali metals means that the result of a precipitate reaction will be…

A

soluble in water

27
Q

M g subscript left parenthesis s right parenthesis end subscript space plus 2 space H to the power of plus subscript left parenthesis a q right parenthesis end subscript plus 2 space C l to the power of minus subscript left parenthesis a q right parenthesis end subscript rightwards arrow M g to the power of 2 plus end exponent subscript left parenthesis a q right parenthesis end subscript plus 2 space C l to the power of minus subscript left parenthesis a q right parenthesis end subscript plus H subscript 2 subscript left parenthesis g right parenthesis end subscript
This is an example of a…

A

complete ionic equation

28
Q

What is missing from this net ionic equation?

A g subscript left parenthesis a q right parenthesis end subscript plus C l subscript left parenthesis a q right parenthesis end subscript rightwards arrow A g C l subscript left parenthesis s right parenthesis end subscript

A

charges

29
Q

What is the net ionic equation for a reaction between sodium chloride (NaCl) and silver nitrate (AgNO3)?

A

Ag+ (aq) + Cl− (aq) → AgCl (s)

30
Q

An interesting precipitation reaction occurs when milk is combined with Coca-Cola. A key component of milk’s chemical makeup is Calcium (Ca). One component of Coca-Cola’s chemical formula is phosphoric acid (H3PO4). What are the products of the molecular equation of a reaction between calcium and phosphoric acid?

A

Ca3(PO4)2 + 3H2

31
Q

The deciding factor for polarity is the…

A

electronegativity of an atom.

32
Q

Particles moving faster with an increase in solubility is an indication of what solubility factor?

A

temperature

33
Q

Pressure has the greatest effect on the solubility of solids.

A

false

34
Q

A covalent compound with a high polarity will likely…

A

form a homogeneous mixture with water.

35
Q

An athlete makes a protein shake by adding protein powder to water. If the shake has to remain at a cold temperature, how should the athlete increase the solubility of the protein powder?

A

They should agitate the mixture by shaking.

General Chemistry - Chemistry I and Lab (11 decks)

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