Explain how energy flows through an ecosystem using the following terms: energy
pyramid, producer, primary consumer, decomposer, sun, secondary consumer, tertiary
consumer

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

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.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.