What is a semiconductor?
a. a conductor that operates only at low temperatures.
b. a conductor that conducts electricity faster than common metals.
c. a conductor that has less conductivity than do metallic
conductors
d. a substance that completely blocks the flow of electricity.

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius