Matter and its Compositions

Dear Students,

Please read the chapter.

Please hover and click on  the below links to find the pdf's for the following chapters:
On clicking, the pdf will open in a different tab, please download for future references.

Or you can directly copy paste the web address provided in URL section of Google to retrieve the PDF's in case of any difficulty with the hyperlinks.

https://drive.google.com/open?id=1PFJay-hEJT2RiJc_PgDzAWdDuBzZCGEC

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There are two kinds of forces, or attractions, that operate in a molecule— intramolecular  and  intermolecular . Let's try to understand this difference through the following example. Figure of towels sewn and Velcroed representing bonds between hydrogen and chlorine atoms We have six towels—three are purple in color, labeled  hydrogen  and three are pink in color, labeled  chlorine . We are given a sewing needle and black thread to sew one hydrogen towel to one chlorine towel. After sewing, we now have three pairs of towels: hydrogen sewed to chlorine. The next step is to attach these three pairs of towels to each other. For this we use Velcro as shown above. So, the result of this exercise is that we have six towels attached to each other through thread and Velcro. Now if I ask you to pull this assembly from both ends, what do you think will happen? The Velcro junctions will fall apart while the sewed junctions will stay as is. The attachment created by Velcro...
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