One more tip on building chemistry basic instincts.
A molecule never stays alone, and molecules are held together by interacting with each other. These inter-molecular interactions are the key to understanding many chemicals, especially the biological properties of molecules. A molecule is simple, but groups of them can be very complex. The key to understanding this is energy, thermodynamics specifically - the subject area linking chemistry with biology.
Water molecules are bonded together by hydrogen bonds. This explains many physical observations we come to know in life, i.e. water (2xH-bonds/molecule) has a higher boiling point than alcohols (1xH-Bond/molecule). Remember, molecules in a group: Intermolecular interaction.
Always consider molecules in ensemble. Molecules are not independent of each other. An ideal theory assuming no interaction among molecules is flawed. That is why the ideal gas law is not true: PV≠nRT, since ideal gases (no interaction) are assumed for this equation.
Until next time, student, keep it up!
Committed to Your Success
Wayne Huang, PhD
"The Rapid Learning Coach"
ChemTips@RapidLearningCenter.com
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