The chemical change shown below was performed by a student in a closed clear container at a temperature of 0°C
Time Elapse
Att mot du
1 Hour 15
ions
2NO
Colorless
2NO
Brown
Colorless
D-McGraw
ion
If the student performs the same chemical change but at a temperature of 80°C, which of the following would
best describe the student's findings?
The rate of the chemical change would not be affected,
The rate of the chemical change would decrease
The rate of the chemical change would increase
The brown gas would change to a red gas,

If the element whose electric configuration ends in the d sublevel, the element is calssified as? a.inner transition b.noble gases c.representative d. transition

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.

How many grams of mgbr2 are needed to produce 75g or metal?