blue
Laughing gas, or nitrous oxide, is a colorless gas. It is often used in medical and dental procedures as a mild anesthetic.
Blue, according to http://www.usp.org/pdf/EN/patientSafety/pSafetyMedicalGases.pdf Safety literature from several sources warns never to rely on tank color alone, to identify the gas inside. Standardization among suppliers is less than perfect. Read the label!
Laughing gas can be used by many dentists, but one cannot personally purchase laughing gas.
Black
No. Laughing gas is Nitrous Oxide
No, laughing gas is not Helium. Laughing gas is Nitrous Oxide.
No, laughing gas is Nitrous oxide(N2O)
Laughing Gas - improv - was created in 1992.
Yes, the compound Nitrous Oxide (N2O) is Laughing gas.
Laughing gas is actually Nitrous Oxide (NO), a compound, not element
YES you can die from laughing gas it can be fun to use but you can die from it :(
Not nitrogen but nitrous oxide (NO) is named "laughing gas"; this gas has an anesthetic and euphoric effect.