What atomic or hybrid orbital on C makes up the sigma bond between C and O in carbon dioxide, CO2 orbital on C. What is the approximate O-C-O bond angle ?

sp hybridized orbitals

The bond angle is 180 degrees

Explanation:

Molecules are formed by overlap of atomic orbitals. Hybridization is a valence bond concept. According to this concept, atomic orbitals are mixed to obtain orbitals of appropriate energy, suitable for bonding.

The sigma bonds in CO2 are formed by sp hybridized carbon atoms. The bond angle of sp hybridized carbon atoms is 180 degrees leading to a linear shape.

answer by yourhope:

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d. most models represent a real-world object in a simpler way.

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i'm pretty sure it is letter c.) car