1 / 19

Chapter 2.1 Properties of matter

Chapter 2.1 Properties of matter. Objective: Introduction to properties of matter. Describing Matter. Properties used to describe matter can be classified as extensive or intensive. An extensive property depends on the amount of matter in a sample.

sumi
Download Presentation

Chapter 2.1 Properties of matter

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 2.1Properties of matter Objective: Introduction to properties of matter

  2. Describing Matter Properties used to describe matter can be classified as extensive or intensive. • An extensive property depends on the amount of matter in a sample. • An intensive property depends on the type of matter in a sample, not the amount of matter.

  3. Describing Matter 2.1 • Extensive properties depend on amount. • The mass of an object is a measure of the amount of matter the object contains. • The volume of an object is a measure of the space occupied by the object. The big ball has moremass and volume than the little ball.

  4. Describing Matter 2.1 Intensive Properties The hardness of a bowling ball is an example of an intensive property.

  5. Is flammability an extensive or intensive property?

  6. 2.1 Identifying Substances Matter that has a uniform and definite composition is called a substance. A substance is pure.

  7. 2.1 Identifying Substances Every sample of a given substance has identical intensive properties. Example- Every sample of pure water is a clear, odorless, liquid at room temperature. It will boil at 100ºC and freeze at 0ºC. These properties are intensive because they do not depend on how big the sample is.

  8. 2.1 Identifying Substances • A physical property can be observed or measured without changing the substance’s composition. • Hardness, color, and malleability are examples of physical properties.

  9. 2.1 Identifying Substances

  10. 2.1 States of Matter Three states of matter are solid, liquid, and gas.

  11. 2.1 States of Matter A solid is a form of matter that has a definite shape and volume.

  12. 2.1 States of Matter A liquid is a form of matter that has an indefinite shape (it flows) but a definite volume.

  13. 2.1 States of Matter A gas is a form of matter that takes both the shape and volume of its container. The gas state is the only state of matter that is compressible.

  14. 2.1 States of Matter • Vapor describes a gas that is usually a liquid or solid at room temperature, as in water vapor.

  15. States of matter- the 3 forms in which matter exists Solid- particles are tightly packed in a rigid structure.Has a shape and a fixed volume! Liquid- particles are very close but can move around each other.Takes the shape of its container, but has a fixed volume. Gas- particles are far apart and moving fast.Has no fixed shape or volume.

  16. Substances go from solid to liquid to gas as energy increases.

  17. 2.1 Physical Changes • During a physical change, some properties of a material change, but the composition of the material does not change. • As gallium melts in a person’s hand, the shape of the sample changes, but the composition of the material does not change.

  18. Homework Read section 2.2 Do questions 11-17 on page 47

More Related