Thursday
April 24, 2014

Homework Help: science(chem)

Posted by ~christina~ on Sunday, September 2, 2007 at 6:38pm.

statement from my text says:

"like disolves like", This rule is most commonly applied to polar and nonpolar compounds. According to this rule, a polar solvent will dissolve polar(or ionic) compounds and non polar solven will dissolve nonpolar compounds.

For this statement I wanted to know if they mean polar substances are ionic or they mean a polar solvent will dissolve both polar and ionic compounds

and another part says:

...it is helpful to seperate the types of solutions we will be looking at into 2 categories: solutions in which both the solvent and the solute are covalent(molecular) and ionic solutions, in which the solute ionizes and dissociates.

For this part it refers to once again their bracketed content. Are all covalent solutions molecular? According to how I'm reading this correctly then that's what it says but what do they mean by "molecular" then?

Thanks =)

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