Homework Help: Chemistry

Posted by Angel on Sunday, January 24, 2010 at 7:58am.

Select all cases in which the units comprising the solid are best classified as molecules.

CrSe

C2H2

CS2

C2H4

Cs2S

Cl2O7

None

Help please? I think they're all molecules

Chemistry - bobpursley, Sunday, January 24, 2010 at 11:46am
I would refer to a table of electonegativity, and determine the predominant bonding. Covalent bonds make molecules.

http://www.cliffsnotes.com/study_guide/Polar-Bonds.topicArticleId-21729,articleId-21679.html
Chemistry - Angel, Sunday, January 24, 2010 at 5:02pm
does that mean covalent bonds make molecules so there for

C2H2
CS2
C2H4
Cl2O7

are the right answer

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