Be sure to answer all parts. A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.0500% carbon dioxide, and 0.930% argon by volume. How many molecules of each gas are present in 6.70 L of the sample at 32°C and 7.55 atm? Enter your answers in scientific notation. × 10 molecules N2 × 10 molecules O2 × 10 molecules CO2 × 10 molecules Ar

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.

How is the atomic number of a nucleus changed by alpha decay

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?