Oxidation-Reduction

Question 1

Rusting is the reaction of what?

Answer 1

Oxygen and iron in the presence of water

Question 2

When a metal corrodes it loses electrons and forms?

Answer 2

Cations

Question 3

When an atom, ion, or molecule has become more positively charged we say it has been?

Answer 3

Oxidized; undergone oxidation

Question 4

When an atom, ion, or molecule has become more negatively charged we say it has been?

Answer 4

Reduced; undergone reduction

Question 5

What is the oxidation number of an atom in its elemental form?

Answer 5

Zero

Question 6

For any _____ ion the oxidation number equals the charge on the ion.

Answer 6

Monatomic ion

Question 7

Nonmetals usually have what kind of oxidation numbers?

Answer 7

Negative

Question 8

What is the usual oxidation number of oxygen?

Answer 8

Negative 2

Question 9

The oxidation number of fluorine is always what?

Answer 9

Negative 1

Question 10

Combustion reactions are considered what because elemental oxygen is converted to other forms of oxygen? (Hint: What is the number in elemental oxygen and in compound oxygen)

Answer 10

Redox

Question 11

What is an activity series?

Answer 11

A list of metals arranged in order of decreasing ease of oxidation

Question 12

The metals at the top of the (activity series) table are most easily?

Answer 12

Oxidized (to lose electrons)

Question 13

The metals at the bottom of the (activity series) table are not readily reacted.

Answer 13

Its just good to know

Question 14

Any metal on the list can be oxidized by the ions of elements ___ it

Answer 14

below

Question 15

Alkali and Alkaline metals are most likely to be found where on the activity series?

Answer 15

The top of the list