Elements and chemical compounds
An element consists of only type of atom.
- Iron, Fe
- Sulfur, S
Mix them and you have nothing more than a mixture of iron and sulfur.
- Two or more substances/chemical compounds included.
- The substances can relatively easy be separated from each other.
- The substances maintain their original properties.
- Iron is still magnetic.
- Sulfur is still yellow.
- Characteristics differ from original elements
If you heat the mixture of iron and sulfur, it reacts, forming iron sulfide, FeS.
- Different color, not magnetic.
Contain only one type of substance/chemical compound.
- Iron sulfide, FeS
- Water, H2O
- Gold, Au
- Sucrose, C12H22O11
Homogenous and heterogenous mixtures
Homogenous mixtures look the same, all the way through.
May be in gaseous, liquid or solid form.
- Salt dissolved in water
Liquid homomgenous mixtures = solutions
Solid homogenous mixtures = alloys