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Chemistry > Chapter 7 > Flashcards

Chapter 7 Flashcards

0
Q

Physical state

A

(l) (g) (s)

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1
Q

Melcular style equation

A

Compounds are writing by their neutral chemical formula.
All reactants are specified in the physical state they appear in.
Arrow is used
The products are added after the arrow (including physical state)

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2
Q

Good place to start balancing

A

Metals

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3
Q

Double displacement

A

(AB+CD->AD+CB

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4
Q

Synthesis

A

A+B -> AB

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5
Q

Decomposition

A

AB->A+B

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6
Q

Single displacement

A

A+BC->AC+B

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7
Q

Molecular equation

A

Complete, neutral, and smallest form

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8
Q

Ionic equations

A

Metal and non metal
Shown
Kl(aq) -> K+(aq)+I-aq)
Shows charges

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9
Q

Complete ionic equation

A

Shows all ions explicitly
Combination of other two
2K+(aq) + 2I-(aq) + Pb2+(aq) + 2NO3-(aq) -> 2K+(aq) + 2NO3-(aq) + PbI2(s)

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10
Q

The net ionic

A

Complete ionic without spectator ions

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11
Q

Spectator ions

A

Ions that do not undergo chemical change

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12
Q

Precipitation reactions

A

Reactions that form a solid, called precipitate, made upon mixing two aqueous solutions.

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13
Q

Acid-base reactions (neutralization)

Acid + base =

A

Water + Salt

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14
Q

Gas evolution

A

Aqueous factions that form a gas and aqueous product

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15
Q

Intermediate product

A

In gas evolution reactions sometimes create an intermediate product that then decomposes into a gas because it is unstable.

16
Q

If bubbles are involved, the reaction is

A

A gas evolution

17
Q

Gas revolution intermediate reactions
Sulfides

Gas evolved

A

Intermediate: None

Gas evolved: H2S

2HCl(aq)+K2S(aq)-> H2S(g) + 2KCl(aq)

18
Q

Gas revolution intermediate reactions
Carbonates and bicarbonates

Gas evolved

A

Intermediate product: H2CO3

Gas evolved: CO2

Example: 2HCl(aq)+K2CO3(aq)->H2O(l) +CO2(g) + 2KCl(aq)

19
Q

Gas revolution intermediate reactions
Sulfites and bisulfites

Gas evolved

A

Intermediate product: H2SO3

Gas evolved: SO2

Example: 2HCl(aq) + K2SO3(aq)-> H2O(l) + SO2(g)+ KCl(aq)

20
Q

Gas revolution intermediate reactions

Ammonium

Gas evolved

A

NH4OH

NH3

Example: NH4Cl(aq)+KOH(aq)-> H2O(l)+NH3(g) +KCl(aq)

21
Q 
O
i
l
R
i
g
A

Oxidation is losing electrons

Redox is gaining electrons

22
Q

What is needed to trigger a decomposition reaction?
1
2
3

A

Light
Heat
Electrical current

Chemistry (18 decks)

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