Physical Chemistry

Covalent bonds and valence

The water molecule always has a composition in which two hydrogen atoms combine with one oxygen. Why? The Lewis structure…

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The effects of temperature on density

The air around a hot radiator soon acquires heat. We explain this observation from the ‘minus oneth law of thermodynamics’…

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What Is Physical Chemistry?

Physical chemistry is the study of how matter behaves on a molecular and atomic level and how chemical reactions occur.…

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