Best Answer: 1) As the person above said: carbon, hydrogen, and oxygen. 2) No. This is unless we consider formic acid as a fatty acid (CH2O2), but the definition of a fatty acid is a carboxylic acid with a LONG unbranched aliphatic tail that is either saturated or unsaturated.
When the tubing is cool, the warm and moist air may condense in the tubing. Not only will you not get the benefit of the moisture, but it can collect and drip into your face or gurgle with the air flow. It is often worse when the bedroom environment is cool or cold compared to the temperature of the pressurized air.
Copper tubing in a pipe cutter. Copper tubing is most often used for supply of hot and cold tap water, and as refrigerant line in HVAC systems. There are two basic types of copper tubing, soft copper and rigid copper. Copper tubing is joined using flare connection, compression connection, or solder.