Chemistry Unit 1 Semester

Question 1

What name is the given to rock or minerals that we can recover a metal from?

Answer 1

Ore

Question 2

Water, NaCL,Mg2,S2,Ca2 are some of the resources present in which layer of our planet?

Answer 2

Hydrosphere

Question 3

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

Answer 3

Mineral

Question 4

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

Answer 4

Atmosphere

Question 5

We currently mind ores of copper that contains what % of copper?

Answer 5

Less than 1%

Question 6

In the “steel wool lab” steel wool was heated for approximately 2 minutes. How did the mass of the steel wool contents change after heating?

Answer 6

Increase

Question 7

A metal is usually obtained from its ore by this process

Answer 7

Reduction

Question 8

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

Answer 8

Electro license

Question 9

People discovered how to obtain iron from its ore at much later date than they discovered how to obtain copper from its ore.

Answer 9

Iron is more reactive than copper,people didn’t know have technology to have high enough temp.

Question 10

A strip of magnesium is places into a water solution of Cu2 ions. What happens

Answer 10

It reacts electrons more form Mg-Cu2

Question 11

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

Answer 11

Procnetallurogy

Question 12

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

Answer 12

Wire

Question 13

What happens in a redox reaction

Answer 13

Both oxidation and reduction occur together

Question 14

Define ore

Answer 14

Mixture of compounds formed on earth that contains desired and undesired materials

Question 15

The more reactive metals are (easie/harder) to separate from an ionic compound than the less reactive metals

Answer 15

Harder

Question 16

A metal reactivity series (does/does not) help you to predict if reaction are likely to occur.

Answer 16

Does

Question 17

A (more/less) active metal will replace a (more/less) active metal from its compound.

Answer 17

Less

More

Question 18

Reduction involves any process in which electrons are (gained/lost)

Answer 18

Gained

Question 19

(Oxidation/reduction) involves any process in which electrons are gained.

Answer 19

Reduction

Question 20

Hydro Metallurgy involves the use of ______ to obtain metals from their ores,

Answer 20

Water

Question 21

Obtaining a metal from its minerals requires the addition of ___ and a source of electron

Answer 21

Energy

Question 22

Copper resources are (evenly,unevenly) disturbed throughout the world.

Answer 22

Unevenly

Question 23

Lead (will/will not) replace potassium.

Answer 23

Will not

Question 24

Calcium (will,will not) replace silver in AgCl.

Answer 24

Will

Question 25

MgCl2 is (easier, harder) to separate into ions than ZnCl2

Answer 25

Harder

Question 26

CuCl2 is (easier/harder) to separate into ions than NaCL

Answer 26

Easier

Question 27

Using the activity series how do you determine if reaction will it not take place

Answer 27

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

Question 28

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

Answer 28

They are both very un reactive so they were discovered in their free state.

Question 29

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

Answer 29

Lithosphere