Chemical vs physical
Download
1 / 7

Chemical vs. Physical - PowerPoint PPT Presentation


  • 83 Views
  • Uploaded on

Chemical vs. Physical. Properties and Changes. What is the difference between a chemical and a physical property? A physical property can be measured or observed using the 5 senses, but a chemical property is the way a substance reacts with other substances to form an all new substance. .

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Chemical vs. Physical' - ady


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Chemical vs physical

Chemical vs. Physical

Properties and Changes


What is the difference between a chemical and a physical property?

A physical property can be measured or observed using the 5 senses, but a chemical property is the way a substance reacts with other substances to form an all new substance.


Changes in matter
CHANGES in matter property?

Two types of changes:

Chemical and Physical


Changes in matter1
CHANGES in matter property?

PHYSICAL Changes:

Only physical properties are changed.

It is still the same substance.

For example: If I paint a volleyball blue…it is still a volleyball. Only the physical property of color has changed.


Changes in matter2
CHANGES in matter property?

CHEMICAL Changes:

Chemical properties are changed along with physical properties.

This results in the creation of a NEW substance with all new properties.

You cannot easily get back the original substance.

For example: Spoiled milk… no longer milk!!!


Evidence of chemical change
Evidence of Chemical Change property?

There are several clues that a chemical change is occurring or has occurred:

Temperature change (exo or endothermic)

Smoke or flame produced

Production of gasses

Odor (smell)

New substance is created


Identify each of the following as either a physical change p or a chemical change c

1. You cut your hair. property?

2. Making a peanut, pretzel and cereal mixture.

3. Baking soda reacts with vinegar and forms a gas.

4. A piece of metal is bent in half.

5. An aspirin is crushed into fine powder.

6. Copper turns green when exposed to the environment.

7. Two clear liquids are mixed and a yellow color forms.

8. Baking cookies.

9. Diamonds are used to scratch glass.

10. A tree burns to form ashes.

11. A piece of paper is crumpled up.

12. Water freezes to form ice.

13. Food rotting.

14. A candle burning.

15. A candle melting.

Identify each of the following as either a Physical change (P) or a chemical change (C)


ad