What is the structure of carbon dioxide an example of? a. An ...

[Medesa]

What is the structure of carbon dioxide an example of?
  a. An element
  b. An atom
  c. A compound
  d. A polar molecule

Question 2

Why is sensible heat detectable while heat that is not sensible cannot be measured?
  a. A thermometer can measure the decrease in temperature but not heat capacity.
  b. The latent heat of fusion cannot be calculated.
  c. Heat that is not sensible and heat that is sensible can both be measured.
  d. A thermometer measures the decrease in temperature, but as liquid changes to solid, the
  loss of heat is not measurable.

[bdobbins]

Answer to Question 1

ANS: C
Compounds are formed when there are two or more elements contained in a molecule. Since carbon
dioxide contains both carbon and oxygen it is considered a compound. Water is another example.
Information can be found in the section The Water Molecule Is Held Together by Chemical Bonds

Answer to Question 2

ANS: D
Sensible heat loss is the detectable decrease in heat. This is measured by thermometers. As the liquid
begins to change into a solid the decrease in temperature is undetectable until all of the liquid has
phase changed. Information can be found in the section Water Has Unusual Thermal Characteristics.

[Medesa]

Excellent

[dawsa925]

Gracias!