5th lonization 1st lonization
Energy
2nd lonization
Energy
3rd lonization
Energy
4th lonization
Energy
Energy
578
1,820
2,750
11,600
14,800
25. The above table shows successive ionization energies for an unknown element from
period 3. What is the unknown element?
a. Na
b. Mg
C. AI
d. si
e. P

What is the empirical formula for c4h8o2

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 moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?