There are two main types of compounds:  ionic and molecular.  Molecular compounds can have either polar molecules or non-polar molecules.  The particles in each type of compound have different strengths of attraction, which we can use to explain a number of properties, such as boiling point, solubility in water, odour, and state at room temperature.
Homework:  complete the Hazardous Materials Assignment Anticipation Guide, using the links on the unit 1 page of this website.



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