A solution containing ethylene glycol and water has a vapor pressure of 5.04 torr at 10oC. Pure water has a vapor pressure of 9.21 torr at 10oC. What is the mole fraction of ethylene glycol in the solution

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

i believe that it is a exoplanet

answer: they produce more slow than unicellular organisms.

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