Chapter 5 - Chemical Reactions Flashcards

1
Q

Reactant

A

A substance that we start with that undergoes a change

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2
Q

Product

A

A new substance that forms during the reaction

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3
Q

Evidence of a chemical reaction

A

Change in color, production of light, formation of a solid, formation of a gas, change in heat

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4
Q

law of conservation of mass

A

Mass is always conserved

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5
Q

Decomposition reaction

A

Reactant: 1 compound, Product: 2 elements or smaller compounds, CD —> C + D

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6
Q

Combination reaction

A

Reactant: 2 elements or compounds, Product: 1 compound, A + B —> AB

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7
Q

Single-displacement reaction

A

Reactant: 1 element and 1 compound, Product: 1 element and 1 compound, A + CD —> C + AD

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8
Q

Double-displacement reaction

A

Reactant: 2 compounds, Product: 2 compounds, CD + EF —> CF + ED

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9
Q

Metals can

A

react with nonmetals to form an ionic compound

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10
Q

Metal displacement

A

One metal displaces another metal from another ionic compound

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11
Q

Halogen displacement

A

One halogen (ie. Br2) can displace a halide (ie. Br-)

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12
Q

Halogen

A

Diatomic

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13
Q

Halide

A

Monoatomic

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14
Q

Activity series of halogen

A

F2 > Cl2 > Br2 > I2

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15
Q

Three types of double-displacement reactions

A

Precipitation reactions, Acid-base reactions, gas formation reactions

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16
Q

Precipitation reaction

A

A double-displacement reaction in which the formation of an insoluble solid called a precipitate

17
Q

Gas formation reactions

A

A double-displacement reaction in which a gas is formed, which helps drive the reaction to completion

18
Q

Acid-base neutralization reaction

A

A double-displacement reaction in which the driving force is the formation of H2O

19
Q

Acid

A

Compound starts with H

20
Q

Base

A

Metal and OH-, N based molecular compounds (NH3)

21
Q

Combustion reactions

A

Any reaction involving oxygen as a reactant and that rapidly produces heat and flame

22
Q

Molecular equations, ME

A

A form of chemical equation in which substances are represented as they exist as molecules

23
Q

Ionic equations

A

Represents the substances in their realistic forms in solution

24
Q

Strong electrolytes

A

Separate into ions

25
Q

Don’t separate into ions

A

weak electrolytes, nonelectrolytes, insoluble ionic compounds, gas and liquid compounds

26
Q
A