Your SlideShare is downloading. ×
0
×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Physical Science: Chapter 5, sec 2

648

Published on

Notes from Tuesday, 10/26/10

Notes from Tuesday, 10/26/10

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
648
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
8
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Compounds Chapter 5, Section 2 10/26/10
  • 2. Section 2 CompoundsChapter 5 Compounds: Made of Elements • A compound is a pure substance composed of two or more elements that are chemically combined. • Elements combine by reacting, or undergoing a chemical change, with one another. • A chemical reaction is the process by which substances change into new substances.
  • 3. Section 2 CompoundsChapter 5 Compounds: Made of Elements • During a chemical reaction, the atoms of two or more elements react with each other to form molecules of compounds. • When two or more elements combine, a new compound is formed. The properties of the new compound are different from the properties of the elements that formed the compound.
  • 4. Compounds: Made of Elements, continued
  • 5. Section 2 CompoundsChapter 5 Properties of Compounds • Each compound has unique physical and chemical properties. • A compound has properties that differ from the properties of the elements that make up the compound. • Elements always join in a specific ratio to form a specific compound.
  • 6. Section 2 CompoundsChapter 5 Breaking Down Compounds • The only way to break down a compound is through a chemical change. • Some compounds can be broken down into their elements. • Other compounds can be broken down to form simpler compounds.
  • 7. Section 2 CompoundsChapter 5 Compounds in Your World • The compounds found in nature are not usually the raw materials needed by industry. Often, these compounds must be broken down to provide elements or other compounds that can be used as raw materials. • Proteins and carbon dioxide are two compounds that play an important role in living things.

×