What material would make the best heating element for an electric range?

a.
a resistor, which converts some electric energy to thermal energy

b.
an insulator, which stops the flow of electricity

c.
a conductor, which carry electric currents

d.
a conductor surrounded by an insulator

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?

Which is an example of a highly unstable isotope that is often used in fission reactions?