1. Element Identification Chart
= Hydrogen
Use the symbols to write out the chemical formula for each station.
Be careful to identify what is connected and what is not. That way you can determine what is just an element, what is a compound and what might be a mixture.
Element = substance that consists of only one type of atom
Molecule = two or more elements held together by a bond
Compound = two or more different elements chemically bonded
= Oxygen O
= Carbon C
= Sodium Na
= Chlorine
Possible compound and mixture names for identification
Methane = CH4 Carbon Dioxide = CO Salt = NaCl
Sodium Pyrite = NaFe Iron Chloride = Fe3ClO Water = H Iron Oxide = Fe2O3 Nitrous Oxide = NO Propane = C3H8
Sodium Hydroxide = NaOH Chlorine Gas = Cl Chloride Gas = Cl3
Steel = Iron (Fe) + Carbon (C) Iron Sulfide = FeS Acetylene = C2H2
Carbon Monoxide = CO Baking Soda = NaCHO Ammonia = NH3
Salt Water = Salt (NaCl) + Water Acid Rain = Water + CO Air = CO2 and N and O2 Cl
= Iron Fe
= Nitrogen N