oxygen ais one of the essential elements necessary for life
TRANSCRIPT
Oxygen• a Is one of the essential elements necessary for life
Oxygen• a Is one of the essential elements necessary for life
• b Makes up over half the earth’s crust by mass
Oxygen• a Is one of the essential elements necessary for life
• b Makes up over half the earth’s crust by mass
• c Occurs in the hydrosphere , lithosphere, and atmosphere• litho – with Si, Al, and others
• hydro – in water as H2Oto form the earth’s crust
• atmo – as O2 we breath and Ozone O3 to protect
Oxygen• a Is one of the essential elements necessary for life
• b Makes up over half the earth’s crust by mass
• c Occurs in the hydrosphere , lithosphere, and atmosphere• litho – with Si, Al, and others
• hydro – in water as H2Oto form the earth’s crust
• atmo – as O2 we breath and Ozone O3 to protect
• d 2/3 of our body weight is Oxygen
Oxygen• a Is one of the essential elements necessary for life
• b Makes up over half the earth’s crust by mass
• c Occurs in the hydrosphere , lithosphere, and atmosphere• litho – with Si, Al, and others
• hydro – in water as H2Oto form the earth’s crust
• atmo – as O2 we breath and Ozone O3 to protect
• d 2/3 of our body weight is Oxygen
• e Combined with the food we eat to produce energy
Oxygen• a Is one of the essential elements necessary for life
• b Makes up over half the earth’s crust by mass
• c Occurs in the hydrosphere , lithosphere, and atmosphere• litho – with Si, Al, and others
• hydro – in water as H2Oto form the earth’s crust
• atmo – as O2 we breath and Ozone O3 to protect
• d 2/3 of our body weight is Oxygen
• e Combined with the food we eat to produce energy
• f 20 billion Kg is produce annually in the United States
Oxygen• a Is one of the essential elements necessary for life
• b Makes up over half the earth’s crust by mass
• c Occurs in the hydrosphere , lithosphere, and atmosphere• litho – with Si, Al, and others
• hydro – in water as H2Oto form the earth’s crust
• atmo – as O2 we breath and Ozone O3 to protect
• d 2/3 of our body weight is Oxygen
• e Combined with the food we eat to produce energy
• f 20 billion Kg is produce annually in the United States
• g Causes rust an corrosion
Oxygen• a Is one of the essential elements necessary for life
• b Makes up over half the earth’s crust by mass
• c Occurs in the hydrosphere , lithosphere, and atmosphere• litho – with Si, Al, and others
• hydro – in water as H2Oto form the earth’s crust
• atmo – as O2 we breath and Ozone O3 to protect
• d 2/3 of our body weight is Oxygen
• e Combined with the food we eat to produce energy
• f 20 billion Kg is produce annually in the United States
• g Causes rust an corrosion
• h Primary cause for the spoilage of food
Oxygen• a Is one of the essential elements necessary for life
• b Makes up over half the earth’s crust by mass
• c Occurs in the hydrosphere , lithosphere, and atmosphere• litho – with Si, Al, and others
• hydro – in water as H2Oto form the earth’s crust
• atmo – as O2 we breath and Ozone O3 to protect
• d 2/3 of our body weight is Oxygen
• e Combined with the food we eat to produce energy
• f 20 billion Kg is produce annually in the United States
• g Causes rust an corrosion
• h Primary cause for the spoilage of food
• I Causes wood to decay
I Causes wood to decay
When Oxygen reacts with a metal, we form the metal oxide
Ti + O2 TiO2
Ca + O2 CaO2
When we burn something, we siply add oxygen (oxidize It)
C3H8 + O2 3CO2 + 4H2O
HYDROGEN
• a By weight, it is 0.9% of the earth crust
HYDROGEN
• a By weight, it is 0.9% of the earth crust
• b By #, it makes up 15 % of the earth crust
HYDROGEN
• a By weight, it is 0.9% of the earth crust
• b By #, it makes up 15 % of the earth crust
• c Usually found combined with water or hydrocarbons
HYDROGEN
• a By weight, it is 0.9% of the earth crust
• b By #, it makes up 15 % of the earth crust
• c Usually found combined with water or hydrocarbons
• d It is colorless and odorless
HYDROGEN
• a By weight, it is 0.9% of the earth crust
• b By #, it makes up 15 % of the earth crust
• c Usually found combined with water or hydrocarbons
• d It is colorless and odorless
• e It is the lightest of all substances
HYDROGEN
• a By weight, it is 0.9% of the earth crust
• b By #, it makes up 15 % of the earth crust
• c Usually found combined with water or hydrocarbons
• d It is colorless and odorless
• e It is the lightest of all substances
• f There is 200 million Kg produced in the US yearly
HYDROGEN
• a By weight, it is 0.9% of the earth crust
• b By #, it makes up 15 % of the earth crust
• c Usually found combined with water or hydrocarbons
• d It is colorless and odorless
• e It is the lightest of all substances
• f There is 200 million Kg produced in the US yearly
• g 2/3 of this amount is used to produce ammonia
• 2H2 + O2 H2O
HYDROGEN
• a By weight, it is 0.9% of the earth crust
• b By #, it makes up 15 % of the earth crust
• c Usually found combined with water or hydrocarbons
• d It is colorless and odorless
• e It is the lightest of all substances
• f There is 200 million Kg produced in the US yearly
• g 2/3 of this amount is used to produce ammonia
• h not used in blimps anymore
• 2H2 + O2 H2O
Oxidation / Reduction
Oxidation – The gain of oxygen atoms
Reduction – The loss of oxygen atoms
2Mg + O2 2MgO
RhO2 RhO + O2
Oxidation / Reduction
Oxidation – The loss of hydrogen atoms
Reduction – the gain of hydrogen atoms
C2H6O C2H4O + H2
FeO2 + H2 FeH2O2
Oxidation / Reduction
Oxidation – the loss of electrons
Reduction – the gain of electrons
Ag Ag2+
Cr2+ Cr
Ca + Mg2+ Ca2+ + Mg
OIL RIG
oxidation involves loss
reduction involves gain
Any oxidation is accompanied by a reduction
FeO + H2 Fe + H2O