The following molecules contain polar covalent bonds. Which of them are polar molecules?
___ H2S
___ CCl4
___ CO2
___ SO2
___ CHCl3

H2S, SO2, CHCl3 are polar molecules

Explanation:

H2S is a polar molecule as the molecule has trigonal shape and the two polar bond are at an angle not opposite to each other.

CCl4- the two pair of polar bonds are opposite to each other. Therefore, cancelling their affect and hence non polar.

CO2 has a linear shape.Again, the two polar bonds are opposite and hence the molecule non polar.

SO2: SO2 has a trigonal planer shape because of the lone pair of electron with the sulphur atom and hence, the molecule is polar.

CHCl3 is a polar organic compound because of the presence both H and Cl atoms on carbon.

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answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.