January
on the periodic table are groups vertical or horizontal
vertical
How many bonds does oxygen have?
2
what do you form when you combine 2 simple substances?
A compound
what does the atmosphere enable?
Life on earth
What are the 2 major Earth’s atmos components
N2 & O2
where are metals on the periodic table?
Left
How many bonds does one hydrogen atom have?
What is double displacement Rxn?
two ionic compounds that are exchanging anions or cations.
What is atmosphere?
Atmosphere is a relatively thin layer of Gasses surrounding Earth.
What are the most important Greenhouse Gases (GG) naturally occuring in atmos
Water Vapor (H2O), Carbon Dioxide (CO2), Methane (CH4), Nitrous Oxide (N2O), & Ozone (O3).
where are nonmetals on the periodic table
right
How many bonds can oxygen form?
2
What are the 5 reactions called
Synthesis Reaction
Decomposition Reaction
Single Replacement Reaction
Double Replacement Reaction
Combustion Reaction
Due to gravity what happens to air density and altitude?
Due to Gravity, ↓Air Density w/ ↑Altitude.
what are CO2 characteristics in normal concentrations
colorless, odorless, non-toxic in ↓ amounts, & a weakly reactive gas denser than Air.
where are metalloids located on the periodic table
The middle
Which element forms the greatest number of bonds?
sulfur
What is synthesis Rxn
reactions that occur when two different atoms or molecules interact to form a different molecule or compound.
what is the greenhouse effect
Warming of Troposphere due to Greenhouse Gases.
what does heat radiation do to a CO2 molecule
Heat radiation makes the CO2 molecule vibrate & radiate
how many elements are on the periodic table
118 elememts
what are hydrocarbons made of?
hydrocarbons are made of hydrogen and carbon
What is a combustion Rxn
a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.S
when does GE occur
GE occurs when GG allow Sun’s heat energy to pass thru Earth’s Atmos & help to absorb most of this heat.
where does most human produced CO2 come from
Most human-produced CO2 comes from Fossil Fuels