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sashaice [31]
3 years ago
14

Given the formula representing a molecule:

Chemistry
2 answers:
NARA [144]3 years ago
5 0

Answer:

Symmetrical and non polar

Explanation:

H- C = C- H is a symmetrical, non polar molecule since it is linear and the arrangement of the atoms is the same on both sides of the triple bond.

Aleksandr [31]3 years ago
3 0

Answer:

B) Symmetrical and nonpolar  

Step-by-step explanation:

The formula is H-C≡C-H.

Each C atom has <em>two</em> electron regions, so VSEPR theory predicts a <em>linear molecular geometry</em> (see image below).

The molecule is symmetrical, because the green line divides the molecule into two halves that are mirror images of each other.

The C-H bonds are slightly polar, because C is more electronegative than H (µ ≈ 0.4 D).

The C atoms are partially negative (red), while the H atoms are partially positive (blue).

However, the two C-H bond dipoles point in <em>opposite directions</em>, so they cancel each other. The molecule has <em>no net dipole moment.</em>

Acetylene is nonpolar.

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