Science 10 Mr Jean February 29 th 2012

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Science 10 Mr. Jean February 29 th, 2012

The plan: Video clip of the day Getting Textbooks Acids Effects of acids In class work on acids

Remind me at 9: 30!!! At 9: 30 am we have the library for 15 minutes to go get our textbooks. Please remind me about this!

Lab tomorrow: Mr. Cooper has the bunsen burners this period. Thursday my plan it to complete the heating of fluids lab.

Acids are very important substances. They are why lemons taste sour. They digest food in our stomachs. They dissolve rocks to make fertilizer. They dissolve tooth enamel to form cavities.

Sulfuric Acid: H 2 SO 4 (aq) Sulfuric acid is the most common chemical manufactured in the United States. 80 billion pounds are used every year in the States to manufacture fertilizers, detergents, plastics, pharmaceuticals, storage batteries and metals.

What do these things have in common?

Acids They taste sour. As a matter of fact, the word acid comes from the latin term “acere” which means sour. If you check the ingredients of many foods, you will see that they may contain acetic acid (vinegar ) and citric acid (found in oranges).

Chemistry: Acid Videos Properties of Acids: – http: //www. brightstorm. com/science/chemistry /acids-and-bases/acid-and-base-properties/ Strong Acids & Strong Bases: – http: //www. brightstorm. com/science/chemistry /acids-and-bases/strength-of-acids-andbases/

Naming Binary Acids:

Intro to tomorrow’s class Naming Acids: http: //www. brightstorm. com/science/chemi stry/acids-and-bases/naming-acids/

Complete Acids & Bases: Work on the front side of the acids and bases work sheet. Keep this sheet as notes for our chemistry test. Unit #1 Test - March 8 th, 2012

Naming Ternary Acids:

Example: Ternary Acids

The Bad and the Ugly

Acid Rain Nature does produce acid-forming compounds. Volcanoes, for example, produce SO 2 Unfortunately, industries produce far greater quantities of it. SO 2 + H 2 O H 2 SO 3(aq) Roughly 2/3 of all SO 2 and ¼ of all NOx produced come from electric power generation that relies on burning fossil fuels such as coal.

Effects of Acid Rain It causes the acidification of lakes and streams and contributes to the damage of trees at high elevation and many sensitive forest soils. It also accelerates the decay of building materials and paints. – http: //faculty. plattsburgh. edu/thomas. wolosz/a cid_rain. htm

Acid Raindrops Are Falling on My Head…how to stop this… We can use scrubbers which chemically remove the SO 2 from coal-burning industries, and power plants can switch to alternative fuels (such as solar, wind, water, or nuclear energy. )

Each Individual Can Help Turn off lights, computers, and other appliances when you're not using them. Only use electric appliances when you need them. Insulate your home as best you can. Carpool, use public transportation, or better yet, walk or bicycle whenever possible. Buy vehicles with low emissions, and maintain all vehicles well. Be well-informed. VOTE for GOVERNMENT’S which care about the environment.

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