1. Elements: Compounds & Mixtures

2. Elements
An element is a pure substance (only 1 type of particle) that cannot be separated into simpler substances by physical or chemical means.

3. Element

4. Compounds
A compound is a pure substance composed of 2 or more elements that are chemically combined.

5. Hydrogen (H) + Oxygen (O)
Examples of Compounds
Compounds contain elements
The elements combine + lose their original properties
Compounds CAN be separated by chemical means
The elements combine in specific ratios
Sodium (Na) +
Chlorine (Cl)
NaCl
Hydrogen (H) + Oxygen (O)
H2O
Carbon (C) + Oxygen (O)
CO2

6. Mixtures
A mixture is a combination of 2 or more substances that are not chemically combined.

7. Examples of Mixtures Properties of Mixtures:
chicken noodle soup
salad
pizza – yes, that would be Yoda…
Properties of Mixtures:
Each substance in a mixture keeps its identity
You can physically separate them
They also contain elements, compounds, or both
And they can be formed using any ratio of
components

8. Mixtures may be homogeneous or heterogeneous
The prefix “homo” indicates the same
Homogeneous mixtures have the same appearance and properties throughout the mixture
The prefix “hetero” indicates difference
Heterogeneous mixtures consist of visibly different substances

9. Mixtures and Compounds Game
Research one mixture and one compound different from others that we have discussed.
For Compounds: Google search “everyday chemical compounds”
For Mixtures: Google search images for “mixtures”
Draw a picture on the front of your paper, and the word mixture or compound on the back.