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S8P1 a.
Pure Substances and Mixtures
Term | Definition |
---|---|
Matter | Anything that has a mass and a volume. |
Atoms | The building blocks of matter. Made up of protons, electrons, and neutrons. |
Molecules | Two or more atoms are joined together chemically. Elements can be different or the same. Example: O + O = O2 |
Compound | A molecule that has two or more different elements bonded together. Example: H + O = H2O |
Heterogeneous Mixture | Parts do not combine. Each keeps its own properties. Can be separated. Example: sand and water. |
Homogeneous | Uniform distribution. Example: sugar and water. |
Solution | Groups of molecules that are mixed in a completely even distribution. A solute dissolved in a solvent. |
Solute | The substance to be dissolved. Example: sugar. |
Solvent | The one doing the dissolving. Water is a universal one. |
Mixture | No chemical change. Each keeps its own properties. Can be separated. |