Chemistry, 13.07.2019 11:30 yourbakedpotato101
What is changed when matter undergoes a physical change? give an example to explain your answer.
Answers: 1
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 04:20
Calculate the mass of 0.750 mol of the following substance. na3po4.
Answers: 1
What is changed when matter undergoes a physical change? give an example to explain your answer....
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