4. (i) What do you understand by living polymers and explain how and when they occur. (ii) Describe briefly the progress of radical polymerization reaction using their initiation,
propagation and termination stages (iii) draw the structures of the monomers and the repeat
units of their polymers (a) vinyl acetate (b) styrene (c) tetrafluoroethylene (d) methy!
methacrylate.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

What is a metal replacement reaction

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.