Unit 2 Vocabulary

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Unit 2 Vocabulary by Mind Map: Unit 2 Vocabulary

1. elements: a substance that cannot be decomposed into simpler substances by chemical means, and is made up of atoms all with identical number of protons.

1.1. example: oxygen

2. compounds: a thing that is composed of two or more separate elements.

2.1. example: NaCl - salt

3. homogeneous mixtures: the same uniform appearance and composition throughout.

3.1. example: corn oil

4. heterogeneous mixtures: made of different substances that remain physically separate.

4.1. example: sand & sugar

5. pure substances: substances that are made of only one type of atom or only one type of molecule.

5.1. example: sulfur

6. solutions: a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).

6.1. example: dissolving table salt in water

7. suspension: heterogeneous mixture in which solute-like particles settle out of a solvent-like phase some time after their introduction

7.1. example: sand in water

8. matter: physical substance in general, as distinct from mind and spirit; that which occupies space and possesses rest mass

8.1. example: solids, liquids, gases

9. mixtures: a substance made by mixing other substances together.

9.1. example: salt & water

10. colloids: homogeneous, noncrystalline substance consisting of large molecules or ultra microscopic particles of one substance dispersed through a second substance.

10.1. example: gels