Introduction into the
Symmetry of Molecules

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Step 102
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The following responses are correct:
a) s s = s 2 = E
b) S3 S3 S3 = S3 3 = s
c) C2 C2 = C2 2 = E

If you solved the question correctly, then you continue with training step 103 .

If you came to another result, then read again the following training steps
with false response a) 73
with false response b) 95
with false response c) 55 , 56
Try the solution of the question in training step 101 then again .