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Beginners' Problems

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Hello people,

I have started to study biology and biochemistry by myself. In this moment, I am facing many many problems.

I have this problem to solve (see attachment).

Can someone tell me please the solution and explaining me the reason?

Thank you in advance!

Best,

Andrea

Problem N.1.png

This topic really belongs in homework help.  In that section, you may expect help but not answers.  My hint is that you first make sure you have a solid grasp of ionic bonds and intermolecular forces.

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