The molar heats of fusion and sublimation of lead are 4. 77 and 182. 8 kj/mol, respectively. Estimate the molar heat of vaporization of molten lead.

In a cooking context,which of the following materials is the best heat conducter?

Which source would provide the most bias-free information about smoking and increased health risks? a) a website created by heart disease patients b) a research study conducted by the mayo clinic eliminate c) a public service message sponsored by tobacco companies d) an online question forum conducted by attorneys for cardiac specialists

Should teachers be allowed to have guns at school? why or why not?