Classification of Matter Elements, Mixtures, and Compounds.

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Presentation transcript:

Classification of Matter Elements, Mixtures, and Compounds

What is Matter? Anything that takes up space.

Classification of Matter Substance A material with a constant composition. (It is the same no matter where it is found.) Sodium Chloride, Water, and Oxygen are substances because they are the same no matter where you find them.

Substances All elements and all compounds are substances!

Elements Elements are substances that are made up of one atom. 113 elements exist, most are metals. Found on the Periodic Table Examples of Elements: Gold, Silver, Hydrogen

Compounds Compounds are substances that are made up of more than one type of atom. Water, for example, is made of hydrogen and oxygen atoms. Compounds are chemically combined. They can be broken down!

Examples of Compounds Water Carbon Dioxide Sodium Bicarbonate (baking soda)

Mixtures Mixtures are made up of 2 or more substances that are combined. Composition of the mixture will vary with sample. Can be: Homogeneous and Heterogeneous

Homogeneous Mixtures Any material that is the “same throughout”. They are evenly mixed but not chemically combined. Each sample appears to be identical to the other.

Examples of Homogeneous Mixtures Salt water Pure air

Heterogeneous Mixtures Two or more substances that are NOT mixed evenly. You can see the different parts of the mixture. Can be separated easily.

Examples of Heterogeneous Mixtures Sand Soil Chicken soup Pizza Chocolate chip cookies

Solutions Special type of homogeneous mixture. Two parts mix physically not chemically. Two parts: Solute and Solvent Solute: what gets dissolved Solvent: what does the dissolving.

Solution Examples SALT WATER Salt is the solute (what gets dissolved) Water is the solvent(what does the dissolving)