Chapter 6 Flashcards

1
Q

Electrochemistry converts what to what

A

chemical energy to electrical energy.

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2
Q

Reactions that involve the loss and gain of electrons are called what?

A

Oxidation-reduction reactions.

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3
Q

What do you call the process where a chemical species loses electrons?

A

Oxidation

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4
Q

What do you call the process where a chemical species gains electrons?

A

Reduction?

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5
Q

Oxidation and reduction individually describe ____ of a redox process

A

half

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6
Q

What does OIL RIG stand for

A

Oxidation Is Loss, Reduction Is Gain

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7
Q

Oxidation and reduction describe which side of the chemical equation?

A

Reactants

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8
Q

The substance that is reduced is called what?

A

Oxidizing agent

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9
Q

The substance that is oxidized is called what?

A

Reducing agent

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10
Q

What do you call the real or apparent charge of an atom or ion when all bonds are assumed to be ionic?

A

Oxidation number.

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11
Q

What is the oxidation number for any atom in its natural state? Fe, Sb, N2

A

0

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12
Q

How are oxidation numbers assigned within a molecule?

A

The sum of the oxidation numbers equals the net charge of the entire molecule.

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13
Q

The oxidation number for any simple ion (C2+, Fe3+) is equivalent to what?

A

The charge of the ion?

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14
Q

The oxidation number for alkali metals in compounds is what?

A

+1

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15
Q

The oxidation number of alkaline earth metals is what?

A

+2

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16
Q

The oxidation number for oxygen atoms in compounds is always ______ except for in _____

A

-2, peroxides

17
Q

The oxidation number of hydrogen atoms in compounds is usually _______ except for ______ which is _______.

A

+1, metal hydrides, -1

18
Q

Halogens usually have an oxidation number of ______

A

-1