Classifying Matter Elements , Compounds and Mixtures

Element : simplest form of matter that has a unique set of properties Examples: Oxygen Hydrogen Carbon

Periodic Table of Elements

Compound : substance that contains 2 or more elements chemically combined in a fixed proportion. Examples: Water, H2O Sucrose, C12H22O11 Carbon Dioxide, CO2

Mixture: a physical blend of two or more substances that are not chemically combined

Describing Matter Heterogeneous Mixture Homogeneous Mixture Composition is NOT uniform throughout Examples: Salad Chocolate Chip Cookie Chicken Noodle Soup Composition is uniform throughout Also called a solution. Examples: Air Steel Vinegar Salt Water Milk

Fill in the following notes on your concept map…

matter Mixture Pure substance Physical changes

chemical combination of Pure substance Compound- chemical combination of two or more elements Element- Pure substance that cannot be broken down Chemical change Ex. burning ex. Hydrogen gas (H2) Ex. Water (H2O)

Heterogeneous mixture Physical combination of two or more substance Heterogeneous mixture Physical combination Of 2 or more substances that is different throughout. Homogenous mixture Physical combination Of 2 or more substances that is the same throughout. ex. Salad dressing Ex. koolaid

Separating Mixtures Differences in physical properties can be used to separate mixtures. Examples: Filtration Distillation Magnetism

Filtration Separates solids from a liquid in a heterogeneous mixture.

Distillation Process which separates mixtures of liquids with different boiling points.