4. a nuclear engineer is designing a nuclear reactor for a new power plant. the reactor core will have an operating temperature of 773 k. the engineer must choose an appropriate coolant to transfer heat from the reactor core through one or more cooling loops to the steam generator and turbines/generator that produce electricity. running the coolant under pressure is more expensive than running it at normal atmospheric pressure (1 atm). the choices for the reactor coolant are listed in the table below, with their properties. choose which substance would be best to recommend to the engineer. explain your choice in terms of its properties. explain how the chemical bonds in the substance account for its properties

When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? c7h16o(g) + o2(g) → co2(g) + h2o(g) -1 -5 -8 -16 -21

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

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.