Sorting Elements, Compounds, and Mixtures

How can we tell the difference?

Make an organizer!• Label your paper at the top: Organizer: Sorting ECM• Make four columns like this: Labels Elements Compounds Mixtures

What to do:

• In the first column write a label for each set of facts.

• Then write the given facts in the correct columns.

• Get ready for the first one!

Label: Notation?

• Symbols• Formulas• Lists

Label: Notation?

• Symbols E• Formulas C• Lists M

Label: Composition

• A variety of different molecules or elements• The same kind of atoms• The same kind of molecules

Composition:

• A variety of different molecules or elements M• The same kind of atoms E• The same kind of molecules C

Composition?

• Fixed proportions/ratios• Variable amounts• NA

Composition?

• Fixed proportions/ratios C• Variable amounts M• NA E

Pure or not?

• Pure• Not pure

Pure or not?

• Pure E & C• Not pure M

How combined?

• Chemically combined (bonded)• NA• Physically combined

How combined?

• Chemically combined (bonded) C• NA E• Physically combined M

Properties

• Components keep their identities when joined• Components lose their identities when joined• NA

Properties

• Components don’t lose their identity when joined M

• Components do lose their identity when joined C

• NA E

How are they broken down?

• Easily separated: Sorting, distillation, filtering, evaporation, centrifuge

• Cannot be broken down

• Difficult to break down: Requires lots of energy such as adding heat or electricity

How are they broken down?

• Easily separated: Sorting, distillation, filtering, evaporation, centrifuge M

• Cannot be broken down E

• Difficult to break down: Requires lots of energy such as adding heat or electricity C

Examples

Examples

compound

element

mixture

More examples

More examples