Convert each of the measurements given to the new unit stated using the factor label method (dimensional analysis). Show all work including rewriting the given. Two step conversions:

26 cm to ft. _
16 lb to g _
1 yr to s _
3.5 mi to km _

Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture

What is the empirical formula for c4h8o2

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.