Answer:
"<em><u>A</u></em><em><u>L</u></em><em><u>U</u></em><em><u>M</u></em><em><u>I</u></em><em><u>N</u></em><em><u>U</u></em><em><u>M</u></em><em><u> </u></em>FOIL" will conduct heat much more effectively than black construction paper.
A likely application of a radioactive isotope with a short half-life such as Technetium-99 will be as a medical tracer. It will likely be used by a doctor to check the movement of substances within a person's body.
A radioactive isotope with such a long half-life like Rubidium-87 is likely used in the determination of the age of fossils and artifacts found by archaeologists.<span />
2KClO3 --> 2KClO2 + O2
12 6 (moles)
The ratio of KClO3 and O2 is 2:1. This means 2 moles of KClO3 can create 1 mole of O2. So 12 moles of KClO3 will create 6 moles of O2.