Consider two samples of gas. Sample A has pressure P, temperature T and volume V. Sample B has pressure P, temperature T/2 and volume V. Gas A has the mass of molecule M, gas B has mass of molecule 4M. What is the number of molecules in sample B in terms of number of molecules of sample A, N

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.

In which phase of mitosis do the spindle fibers pull the chromosomes apart to opposite sides of the cell ?

Convert a speed of 201 cm/s to units of inches per minute. also, show the unit analysis by dragging components into the unit‑factor slots.