When an apple or banana is cut, a chemical reaction with the air causes the flesh to turn brown.   predict what would happen to the rate the flesh turns brown if you put the fruit in the refrigerator.   explain why.

In all living cells dna controls cellular activities by

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.

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a