Click on the button, or type in the response to each of the following questions. When you are finished, press the submit button. CAUTION: The reset button clears ALL entries.
Name: Please give me full names.
28. Classify the following properties as chemical or physical: a. burning coal Select One Chemical Property Physical Property b. tearing a piece of paper Select One Chemical Property Physical Property c. kicking a football Select One Chemical Property Physical Property
d. excavating soil Select One Chemical Property Physical Property
e. exploding TNT Select One Chemical Property Physical Property
29. Classify the following properties as chemical or physical.
a. density Select One Chemical Property Physical Property
b. melting point Select One Chemical Property Physical Property
c. length Select One Chemical Property Physical Property
d. flammability Select One Chemical Property Physical Property
30. What is the difference between an endothermic reaction and an exothermic reaction?
33. How many joules are required to heat 692 g of nickel from 22 oC to 318 oC? 20,250 J
90,900 J
900 J
159.004 J
36. Copper has a specific heat capacity of 0.384 J/g oC. A 105 gram sample is exposed to 15.2 kJ in an insulated container. How many degrees will the temperature of the copper sample increase? 0.995 oC
689 oC
0.00771 oC
376 oC
