Chemistry, 12.03.2020 05:24 redrhino27501
If it takes three "breaths" to blow up a balloon to 1.2 LL, and each breath supplies the balloon with 0.060 moles of exhaled air, how many moles of air are in a 3.0 LL balloon?
Answers: 1
Chemistry, 22.06.2019 09:10
Which class of molecules functions as chemical signals? hormones water carbohydrates proteins
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Chemistry, 22.06.2019 10:30
Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.
Answers: 1
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
Chemistry, 22.06.2019 12:00
What is the subscript for oxygen in its molecular formula
Answers: 1
If it takes three "breaths" to blow up a balloon to 1.2 LL, and each breath supplies the balloon wit...
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