The Reason for Handedness in Molecules: Chirality a)A laboratory flask has a plane of symmetry (a) (b) One half of the flask is a mirror image of the other half b)A hand does not have a plane of symmetry One half of the hand is not a mirror image of the other half FORWLEINNAPm a) A laboratory flask has a plane of symmetry ▪ One half of the flask is a mirror image of the other half b) A hand does not have a plane of symmetry ▪ One half of the hand is not a mirror image of the other half The Reason for Handedness in Molecules: Chirality