Physical/ Chemical Properties(PS 2)

Physical/ Chemical Properties(PS 2)

Test date______

• Matter is anything that has mass and occupies space. All matter is made up of small particles called atoms.
• Be able to differentiate between solids, liquids, and gases using the particle theory.

• The atoms of any element are alike but are different from atoms of other elements. Compounds consist of two or more elements that are chemically combined in a fixed ratio. Mixtures also consist of two or more substances, but the substances are not chemically combined.
• Describe how to determine whether a substance is an element, compound, or mixture.

• Matter can be described by its physical properties, which include shape, density, solubility, odor, melting point, boiling point, and color. Some physical properties, such as density, boiling point, and solubility, are characteristic of a specific substance and do not depend on the size of the sample. Characteristic properties can be used to identify unknown substances.
• Matter can also be described by its chemical properties, which include acidity, basicity, combustibility, and reactivity. A chemical property indicates whether a substance and undergo a chemical change.
• Distinguish between physical and chemical properties.
• Determine the identity of an unknown substance by comparing its properties to those of a known substance.

STUDY GUIDE: PROPERTIES, CHANGES & MATTER

1. Identify a type of matter and defend why it is classified as such.
2. Differentiate between physical and chemical properties. Give examples of each.
3. Describe the three states of matter based upon shape and volume. Draw pictures to differentiate between the particles of the three states of matter.
4. Physical and chemical properties are called characteristic properties because…
5. Differentiate between physical and chemical changes. Give examples of each.
6. Differentiate between endothermic and exothermic changes. Give examples of each.
7. Define element and give examples.
8. Define compound and give examples.
9. Define mixtures and give examples.
10. Using the definitions above, describe salt as an element, compound, or mixture. Defend your answer.
11. During a lab, you have captured hydrogen gas in a balloon. Present an argument that supports the idea that the gas in your balloon is the same gas that can be found on the sun.
12. You left your bike outside all spring and its chains are now rusted. Describe the change that has occurred to your chains as a physical one or chemical. Support.