Homework Help: Chemistry

Posted by mysterychicken on Monday, October 25, 2010 at 4:45pm.

3. A hypothesis is a testable statement.- T

4. Weight is a measure of the quantity of matter.- F

6. Potential energy is energy of motion.- F?

7. Liquids do not have a definite shape or volume.- F

8. The ability to burn is a chemical property.- T

10. Solutions are heterogeneous mixtures.- F?

11. An element cannot be broken down into simpler substances by ordinary chemical means.- F

16. Density is the mass of a substance per unit of volume.- T?

20. The amount of heat needed to raise the temperature of one gram of a substance 1degree C is specific heat.- T?

Thanks!
-MC

Chemistry - bobpursley, Monday, October 25, 2010 at 5:53pm
11. Think
20. Actually, lawyer wise, it is false.
specific heat content is the amount of heat required to raise a specific mass a specific increase in temperature. That being said, its units can be

J/gC or kJ/kg-C or kJ/mole-C

But in your text, I bet it is true, joules per gram-C
Chemistry - mysterychicken, Monday, October 25, 2010 at 6:25pm
So 11 is T?

Thanks!
-MC

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