Chemistry, 14.01.2020 04:31 rgilliam3002
The hydrogen gas generated when calcium metal reacts with water is collected over water at 20 degrees c. the volume of the gas is 641 ml and the pressure is 988mmhg. what is the mass in grams of the hydrogen gas obtained? the vapor pressure of water at 20 degrees c is 17.54 mmhg.
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What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )
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Chemistry, 22.06.2019 05:40
Consider the elements bromine and chlorine; which elements has a larger ionic radius ?
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Chemistry, 22.06.2019 09:30
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Chemistry, 22.06.2019 11:00
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.
Answers: 2
The hydrogen gas generated when calcium metal reacts with water is collected over water at 20 degree...
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