True or false
natural elements don't reflect light.
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Chemistry, 09.10.2019 10:00 BreBreDoeCCx
True or false
natural elements don't reflect light.
Answers: 3
Chemistry, 22.06.2019 05:00
Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change
Answers: 3
Chemistry, 22.06.2019 17:10
)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
Chemistry, 23.06.2019 00:50
What is the enthalpy of combustion (per mole) of c4h10 (g)? –2,657.5 kj/mol –5315.0 kj/mol –509.7 kj/mol –254.8 kj/mol
Answers: 1
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