When she dropped a rock into a graduated cylinder of water, veronica noticed it sank to the bottom. she decided to investigate what it would do if she tossed it into a much larger amount of water. when she tossed it into a lake, the rock sank again. which statement best explained why this happened?

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

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.