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math15tweek2.dvi A ALEKS . SoEun Choi . Learn O 32c Distinguishing chemical . ×

ID: 714310 • Letter: M

Question









math15tweek2.dvi A ALEKS . SoEun Choi . Learn O 32c Distinguishing chemical . × x Secure ht ks.com/alekscgux/isl.exe/to.u-igNslkr7)8P3/H-BiKFdwJdkR409DFuFbLESJHQJOYSYezonzjcYTYgE-mpw O MATTER Distinguishing solild, liquid and gas phases of a pure substance re are three sets of sketches below, showing the same pure molecular compound (hydrogen chloride, molecular formula HCl) at thr ketches are drawn as if a sample of hydrogen chloride were under a microscope so powerful that individual atoms o nperatures The e sketch in each set is correct. e the slider to choose the correct sketch in each set. You may need the following informations melting point of HCl:-114.8 °C boiling point of HCl: -85.1 C 91.G 9."

Explanation / Answer

Sketch A - as given below -114 degree Celsius HCl will exist in solid phase .as the temperature( -148 ) is low as it's melting point so in this phase it will exist as solid .

Sketch B - as given the boiling point of HCl is -85 degree Celsius so above this temperature the liquid form will exist as the temperature(-91) is between melting point and boiling point hence it will exist in liquid .

Sketch C - BOILING POINT is -85 degree Celsius above this temperature (9 degree Celsius) it will exist in gas phase.