Crude oil was formed millions of years ago from the remains of living things Where is crude oil found today? inside rocks
under dry land and under the ocean
floating in the ocean
inside living things that have died

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.

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.