Saturday, May 22, 2010

Easy Chemistry Questions?

-What is the difference between Intensive %26amp; extensive Property?


-Does a liquid have a lower density than a solid normally? What is an exception ?


-Explain how the uses of percent error and difference are different.


-Convert 28 C to fahrenheit and Kelvin


-Who Are Democritus %26amp; Aristotle ?


What are 2 parts of Dalton's Atomic Theory that have been found to be incorrect? Explain why they are incorrect?


-What are the 2 main parts of an atom ? Which has a greater mass and greatr volume?


-What holds a nucleus together ?


-What did Thompson %26amp; Milliken do ?


-Describe the gold foil expirement. What was this used to discover ?


-Describe the photoelectric effect. What did it help prove?


- What type of movement of an electron requires the absorption and the emission of energy?


-Relationship btween energy,wavelength, and frequency





IF YOU KNOW ANY OF THESE PLEASE HELP ME !!!!!!!





person with the most questions answered will get BEST ANSWER

Easy Chemistry Questions?
there is a goggle button on your pc. try using that.
Reply:U are kiddin me


And i'm sure u didn't try to answer any of those questions.


This is cheating.


I only dumb ppl are going to try to answer those questions ( by the way i know the answers) for 10 points.


Go to goggle and read ur text book.


U will get the answers
Reply:3. percent error involves diveding and mulitplying, while difference only involves subtration





4. 28 C to kelvin = 28 + 273 = 301 K





5. Democritus and Aristotle were philosphers from ancient Gree





7. Protons, neutrons, and electrons. Protons and neutrons have greater mass then electrons.





8. Protons and Neutrons?











9. Millikan did the oil drop experient, I forgot what Thompson did.





10. The gold foil experient helped to discover protons.





13. (wavelength)(frequency) = speed of light





energy = (planks contant)(frequency) = (planks constant)(speed of light/wavelength)





hope that helps.
Reply:Hmmm...I haven't been taught all of these, but I'll see what I can do...


1)don't know


2)Solids are normally denser, with ice being an exception,


3)don't know


28 degrees celsius: +273 to get Kelvin, multiply by 9/5 then add 32 for fehrenheit


4)Philosophers of Alchemy, the study of turning ordinary objects into gold/other substances


5)I can't even remember!


6)Nucleus and electron clouds, I think...Nucleus =greater mass, electron clouds=greater volume, I think...


7)bonds


8)never heard of 'em


9)never heard of 'em


10)never heard of it


11)don't know!!


12)man, that's depressing, I can't even remember that


Sorry, GOOD LUCK!!!


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