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.
Report Abuse. If you have got a double sink block one drain of and fill that basin with water. Pour 1/4 cup of Bi-carb soda directly into the other drain followed by 1/2 cup of vinegar, immediately blocked the drain of and let it sit and work for about one hour or over night.Make sure the plug fits proper. Fill the basin with water.eport Abuse. If you have got a double sink block one drain of and fill that basin with water. Pour 1/4 cup of Bi-carb soda directly into the other drain followed by 1/2 cup of vinegar, immediately blocked the drain of and let it sit and work for about one hour or over night.