Chemistry, 16.04.2020 06:23 kait93

Why do scientists believe that some tectonic plates are moving away from each other?

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Chemistry, 22.06.2019 11:00, daniel1480

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.

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Chemistry, 22.06.2019 22:30, abc236

The vapor pressure of ethanol is 1.00 × 102 mmhg at 34.90°c. what is its vapor pressure at 61.61°c? (δhvap for ethanol is 39.3 kj/mol.)

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Chemistry, 23.06.2019 05:30, dexy8683

The term gas is limited to those substances that exist in the gaseous state at

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Chemistry, 23.06.2019 08:40, RanaA5515

The half-life of a certain element is 100 days. how many half-lives will it be before only one eighth of this elementremains?