Dealing With Multiple Bonds Rule 3:Multiple-bonded atoms are equivalent to the same number of single-bonded atoms H H H is equivalent to H H H This carbon is This carbon This carbon is This carbon bonded to is bonded to bonded to is bonded to 且，C,C H,H,C,C H,C,C H,H,C,C C一H is equivalent to This carbon is This carbon This carbon is This carbon bonded to is bonded to bonded to is bonded to C,C,C H,C,C,C C,C,C H,C,C,C @2004 Thomson-Brooks/Cole Rule 3: Multiple-bonded atoms are equivalent to the same number of single-bonded atoms Dealing With Multiple Bonds