Briefly note the most distinctive features you observe in the rock. For example, does the sample appear to be mostly or entirely composed of the same mineral? Is the rock layered (foliated)? Are the foliations planar or folded? Are different layers com-posed of different colors/types of mineral? Are some mineral grains large and others much smaller? Is there any hint of shiny mica minerals along the foliations?

What is the standard unit of measure for acceleration?

How many grams of aluminum will there be in 98g of al2o3?

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.