Ibuprofen, a well-known non-steroidal anti-inflammatory drug, has chirality. Only the S enantiomer has anti-inflammatory activity (although the R enantiomer is converted slowly by the body into the S enantiomer). Add wedge-and-dash bonds to complete the perspective structures of the two stereoisomers of ibuprofen.

See image attached

Explanation:

Ibuprofen is a chiral compound. 'Chiral' means that it has the ability to rotate plane polarised light owing to the presence of an asymmetrically substituted carbon atom. There are two known stereoisomers of the compound; the S- stereoisomer and the R-stereoisomer. The both are shown using wedge and dash perspectives in the image attached.

Only the S- stereoisomer is active as a drug. The R-stereoisomer is gradually converted into the S-stereoisomer in the body. The drug may also be given as a racemic mixture.

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

there are two significant figures.