Thursday, September 23, 2004

Lesson 7

Reveiw for Quiz on Monday

Here are the topics you should know for Monday's quiz:

1. Density calculations -
Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 101.0 g. From this information, calculate the density of mercury.

2. Volume calculations -
What volume of silver metal will weigh exactly 100.0 g. The density of silver is 10.5 g/mL.

3. Mass calculations -
Find the mass of 1020.0 mL of benzene. The density of benzene is 0.8765 g/mL.

4. Physical/ Chemical Properties

A snow man turning to water is a physical or chemical property? What is this property called?

5. Physical/ Chemical Changes

Hydrogen making a popping sound and igniting is a physical or chemical change? What is this change called?

Good luck.

Also review your definitions for particle theory of matter.


5 Comments:

At September 24, 2004 at 12:29 PM, Blogger andrewl200 said...

hey mr.doctorow.. this site is really helpful
i am working on my density calculations rite now
must get bak to work bye

 
At September 25, 2004 at 10:44 PM, Blogger N.Doctorow said...

Thanks for the feedback. Hopefully you all get some good practice from the website's questions. Also, I hope you are finding the website to be a good resource for helping you when you have questions.

Cheers,

Mr. Doctorow

 
At September 26, 2004 at 11:08 AM, Blogger mattsterbarker said...

hey Mr.Neil DOctorow... This website is awasome i jussd dont no if the Caalculations i made the little review on the website are right or wrong. So for a comment it would be cool if you made lotz more questions with the answers to saee if we got it riht or not. you are a cool teacher cya on monday!!!!!!!!

 
At September 26, 2004 at 12:45 PM, Blogger N.Doctorow said...

Hey guys there is a difference between helping and giving away answers. I am happy to help but won't give anything away. Extra help is available on Monday morning before 8:15 a.m. in our room.

Bye and good luck.

Mr. D.

 
At September 26, 2004 at 5:21 PM, Blogger jesssikahh said...

heyyy oooooo this site is soo cool ! haha thnkss for the studyyinn tipss thingy ma bobbber -_- . now.. back to studyin

 

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