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.
To clean your sinks and faucets, sprinkle lightly with baking soda and then scrub gently with a moist cloth or sponge. The soda removes most day-to-day soil and washes away easily with water (see References 1, 2).f it's a double sink, block both. As the vinegar and baking soda react to create carbon dioxide, the trapped gas will exert force on the blockage to clear it. After 15 minutes, remove the plug and pour two quarts of boiling water down the drain.