1.1 Flashcards by Lois Vobe | Brainscape

Q

The oxidation number of an

uncombined element is

A

0

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Q

The sum of the oxidation numbers in a compound is

A

0

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Q

In an ion, the sum equals

A

The overall charge

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Q

The oxidation number of oxygen is

A

-2

Except with fluorine or in peroxides

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Q

The oxidation number of hydrogen is

A

+1

Except in metal hydrides

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Q

What does an ionic equation focus on

A

The changes taking place

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Q

What is a spectator ion

A

Any ions that do not change during a reaction

Left out of ionic equations

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