Unit 2 Section B

Question 0

What name is given to a rock or mineral that we can recover a metal from

Answer 0

Ore

Question 1

Which portion of our planet is the major supply house for the production of manufactured goods

Answer 1

Lithosphere or crust

Question 2

The resources are fairly evenly distributed

Answer 2

False

Question 3

The more land a country has the greater its supply

Answer 3

False

Question 4

They are not evenly distributed

Answer 4

True

Question 5

They are deep within the earth

Answer 5

False

Question 6

Water, NaCl, Mg+2, S2-, Ca2+ are some of the resources present in which layer of our planet

Answer 6

Hydrosphere

Question 7

Major layers of our planet

Answer 7

Atmosphere
Hydrosphere
Lithosphere

Question 8

What term is five to a naturally occurring solid substance commonly removed from ores to obtain a particular element of interest or value

Answer 8

Mineral

Question 9

Gases like nitrogen, oxygen, neon, and argon are some of the recourses present in which layer of our planet

Answer 9

Atmosphere

Question 10

Factors to take in count when deciding whether to mine s specific ore over another

Answer 10

• distance from mine to refinery
• % of metal in the ore
• type of mining and processing required

Question 11

Why is copper the worlds most common metal used for electrical wiring

Answer 11

It’s ductile

Resistant to corrosion

Question 12

We currently mine ores of copper that contain what % of copper

Answer 12

Less than 1%

Question 13

In the lab converting copper, copper was heated until w black product was formed. How did the mass of the crucible contents change after heating ?

Answer 13

It increased

Oxygen in the air reacted with the copper to form the compound

Question 14

A metal is usually obtained from its ore by this process

Answer 14

Reduction

Question 15

Very reactive metals such as lithium potassium calcium magnesium and aluminum would most likely be obtained by this method

Answer 15

Electrolysis

Question 16

Reduction is always accompanied by oxidation

Answer 16

True

Question 17

Reduction involves gaining of electrons

Answer 17

True

Question 18

Reduction is the process whereby metals rust

Answer 18

False

Question 19

Reduction of minerals often produces elemental metals

Answer 19

False

Question 20

People discover how to obtain iron from its ore at a much later date than they discovers how to obtain copper from its ore. What is the principle reason for this delay in discovering iron?

Answer 20

Iron is more reactive than copper and people at the time were not able to reach high enough temperature to separate it

Question 21

A strip of magnesium is placed into a water solution of Cu+2 ions. What happens?

Answer 21

It reacts.

Electrons move from magnesium to Cu2+

Question 22

What is the name given to the treatment of metals and their ores by heat, such as in a blast furnace.

Answer 22

Pyrometallurgy

Question 23

Which element is most likely to be most reactive

Answer 23

Lithium

Question 24

The fact copper is very ductile lets us make what thing from it

Answer 24

Wiring

Question 25

What happens in redox action

Answer 25

Oxidation and reduction

Question 26

Define the term ore

Answer 26

A mixture of compound found each that contain a desired metal within minerals and many compounds are useless to us.

Question 27

The more reactive metals are ____ to selerate from an ionic compound than the less reactive metals

Answer 27

Harder

Question 28

A metal reactivity series _____ help you to predict if reactions are likely to occur

Answer 28

Does

Question 29

A ______ active metal will replace a less active metal from its compound

Answer 29

More

Question 30

Reduction involves any process in which electrons are ____

Answer 30

Gained

Question 31

Hydro metallurgy involves the use of _____ to obtain metals from their ores

Answer 31

Water

Question 32

Obtaining a metal from its mineral requires the addition of _____ and a source of electrons

Answer 32

Energy

Question 33

Copper resources are ______ distributed throughout the world

Answer 33

Unevenly

Question 34

Lead ______ replace potassium in KNO3

Answer 34

Will not

Question 35

Calcium ______ replace silver in AgCl

Answer 35

Will

Question 36

MgCl2 is _____ to separate into ions than ZnCl2

Answer 36

Harder

Question 37

CuCl2 is _____ to separate into ions than NaCl

Answer 37

Easier

Question 38

How would you determine if a reaction will or will not take place

Answer 38

A more reactive metal will replace a less active metal from its compound

Question 39

Why were copper gold and silver among the first metallic elements discovered

Answer 39

They are both very unreactive so they were discovered in their free state