Quest Redox (12.01.2020) Flashcards Preview

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Flashcards in Quest Redox (12.01.2020) Deck (13)
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1

in an ____ reaction, one reactant loses electrons and another reactant gains electrons. Electrons are transfered from one reactant to another.

oxidation-reduction

2

oxidation is a __

loss of electrons

3

reduction is a ___

gain of electrons

4

an oxidation number for the more electronegative atom is __

negative

5

The sum of the oxidation numbers in a molecule is equal to __, or for a polyatomic ion, to ____

zero; its charge

6

the oxidation number of an element is ___

zero

7

the oxidation number of a monatomic is equal to ___

its charge

8

in compounds, the oxidation number of group 1A elements is ___ and of group 2A elements is ___

+1, +2

9

in compounds, the oxidation number of fluorine is always __. other elements in group 7A also are this except when combined with oxygen or fluorine

-1

10

in compounds with nonmetals, the oxidation number of hydrogen is ___

+1

11

in compounds with metals, the oxidation number of hydrogen is ___

-1

12

____ agent provides electrons when oxidized

reducing agent

13

___ agent accepts electrons when reduced

oxidizing