Atom - the smallest type of particle that can exist by itself
Element - a substance made of only one type of atom
Molecules - two or more atoms joined together
Compound - two or more different atoms chemically bonded
All elements have their own symbol made up of one or two letters and the first letter is always a captial.
When two or more elemnts react, it is a chemical reation. The atoms don't just mix together but become joined to one another to make compounds.
Mixtures and Compounds are both made up of two or more types of atom but only compounds are atoms chemically combined.
Solvent - base e.g. water
Solute - put into solvent e.g. salt
Solution - made of solute and solvent e.g. salt and water
Soluble - will dissolve
Insoluble - won't dissolve
Saturated Solution - can't disolve any more
Mixtures can be separated by distillation.
1) The liquid and dissolved salt are heated up
2) The water begins to boil
3) The water turns into steam
4) The steam travels to the cool condenser
5) The condenser cools the steam