A gas has a pressure of 50.0 mm Hg at 540 K. What is the pressure at 200.0 K if there is no volume change? * 17.0 mmHg
18.5 mmHg
19 mmHg
22.5 mmHg

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several