1 Consider the first atom of each part of the molecule. An atom with higher atomic number has higher priority. (e.g. I > Cl > C > H)  If the first atom of two groups is the same, consider the second atom(s) in the same way as the first. (e.g. -C(CH3)3 > -CH(CH3)2 > -CH2CH3 > -CH3).
1 You can also use a toilet plunger on your bathroom sink. 2  Fill up the sink with water first, the use the plunger vigorously on the drain just as you would a toilet. 3  This will lift and agitate any blockage in the drain. It will smell a bit like vinegar for about a day. 2  You can also use a toilet plunger on your bathroom sink. 3  Fill up the sink with water first, the use the plunger vigorously on the drain just as you would a toilet.
ZEP Commercial Shower Tub and Tile cleaner is an acid-based, multi-purpose bathroom cleaner designed to breakdown soap scum, dirt and hard water stains, it leaves ceramic tile, sink basins and chrome looking like new. Just spray it on and let the foaming action do the work. Plus, this cleaner is safe for use on acrylic, cultured marble, fiberglass and most ceramic tiles and porcelain. 1  Dissolves soap scum, calcium deposits and lime scale.  Powerful foam reduces scrubbing.