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Flashcards in Hannah 10 Deck (54)
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Oxygen is _____ of the air we breathe

21%

1

Nitrogen is ____ of the air we breathe

78%

2

Argon is ____ if the air we breathe (because of nuclear decay)

1%

3

_______: 2 DIFF molecules of the same element
O2 (breathe)
O3: ozone
- High in atmosphere
- uv protection

Allotropes

4

_______
-in pressurized sprays
-destroys O3(ozone)
- 1 of these can destroy 300,000 O3 molecules

Chlorofluorocarbons CFC

5

______
-medicines use it
-thanks to ************* drinking water life expectancy went up 10 years in the 1920s to 1930s

Medicines

6

Noble gases
-Ar= 1% - direct result of _____

Radioactive decay

7

____: smallest
-a result if Uranium decay it's rare and expensive l
-from ground in Texas
- uranium ore decays ----> ***. Gas
-a lifting gas
-*** balloons have 30% ***

He

8

________
Uses: leavening emulsifiers, carbonated beverages, detergents
_________:dissolves teeth in soda.
-pesticides, insecticides and herbicides
-never expose to young kids

Phosphorous
Phosphoric acid

9

_______
- hydrogen sulfide (H2S)
-smells like rotten eggs
Can contaminate well water
-has many allotropes
-mined from the ground
-FRASH PROCESS: high pressure steam meets sulfur, bringing it out of the ground

Sulfur

10

________
-hydrogen sulfide (H2S)
-smells like rotten eggs
-can contaminate well water
-has many allotropes: 2 DIFF molecules of the same element
-mined from the ground
-Frash process: high pressure steam meets ***** bringing it out of the ground

Sulfur

11

_____: high pressure steam meets sulfur bringing it out of the ground

Frash process

12

_____ is used in farming
- combine S with O to make nitrates

Ammonia

13

AMMONIA is used in farming
Combine ___ and ___ to make NITRATES

S
O

14

Medicine and ______
- lung diseases (emphysema, lung cancer etc.)
-danger!!! It's flammable! No smoking

Oxygen

15

_________(CFC)
- in AC units
-you cannot normally throw out AC units because ******* will let into the atmosphere. It's illegal to discard AC units in western nations. The chemicals must be bled out

Freon

16

In __________. (2000) CFC's were banned worldwide

Montreal Protocol

17

______: blocks UVc
UVc increases the risk of cancer

Ozone

18

_______:uses -
-medicine
-antiseptic = ***** & Iodine
-crystal in B+W film
-firefighting
-HALON: a gas that contains this. *see pic

Bromine

19

______: a gas that contains bromine
-displaces O2 in a fire
-problem: people suffocated because no oxygen
-buildings with technology often have this
-has Brominev

Halon
*the bromiNes play HALON

20

______
-the most abundant element in the universe
-70% of the universe is hydrogen
-DEUTERIM: **** isotope used by stars

Hydrogen

21

HYDROGEN
-the most abundant element in the universe
-70% of the universe is hydrogen
-_________: hydrogen isotope used by stars
Properties of Hydrogen
Boiling point: -253 C
Melting point: -260 C
Hydrogen as fuel
H2+O2---> H2O
Lightest & cheapest gas
-flammable: the HINDENBURG
- to make Hydrogen: H2O---> H2 + O2

Deuterim

22

HYDROGEN
-the most abundant element in the universe
-70% of the universe is hydrogen
- DEUTERIM: hydrogen isotope used by stars
Properties of Hydrogen
Boiling point: -253 C
Melting point: -260 C
Hydrogen as fuel
H2+O2---> H2O
Lightest & cheapest gas
-flammable: the ______
- to make Hydrogen: H2O---> H2 + O2

Hindenburg

23

Sulfur contaminated many streams in _______
-results from RINSING PROCESS from MINING
-silver tarnishes from H2S
-chemical cleaners react from H2S
_______:oily sulfur based chemicals found in skunks

Western Pennsylvania
Mercaptans

24

What are Mercaptans

Mercaptans are OILY SULFUR BASED CHEMICALS found in SKUNKS

25

________: diatomic molecules
-end in a P5 wants another electron
- ex: F-, Cl-, Br-, I-, At- (ions because have extra electron
-ex: Cl2= chlorine gas----> diatomic molecule

Halogen

26

______: not nutritional requirement
F- penetrates lattice of Ca/phosphate ions in bones. It makes it HARDER

Fluorine/Flouride

27

______: mankind uses this chemical most
-powerful and inexpensive
-HNO3 (H+, NO3-)
- N2 is inert
-nitroglycerin (unstable) + TNT (an explosive)
-TNT has a formula

Nitric Acid

28

______
- 78%
- a P3
-triple covalent bond N=N (one more -)
- inert gas

Uses in industry
-avoid combustion
-economical boiling point: -196C
-liquid form is obtained by compressing and distilling air
DEWAR: a container for liquid nitrogen. It has a release valve to avoid explosion.
-nitrogen in medicine
-remove warts: put on cotton, freeze off warts
-ALUM: (biological enzyme) destroys tissue chemically

Nitrogen

29

NITROGEN
- __%
- a P3
-triple covalent bond N=N (one more -)
- ____

Uses in industry
-avoid combustion
-economical boiling point: -196C
-liquid form is obtained by compressing and distilling air
DEWAR: a container for liquid nitrogen. It has a release valve to avoid explosion.
-nitrogen in medicine
-remove warts: put on cotton, freeze off warts
-ALUM: (biological enzyme) destroys tissue chemically

78%
Inert gas