Methyl cation, anion, and radical. Methyl cation. The methylium cation (CH3+) exists in the gas phase, but is otherwise not encountered. Some compounds are considered to be sources of the CH3+ cation, and this simplification is used pervasively in organic chemistry.
The square foot (plural square feet; abbreviated ft 2 or sq ft) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States and partially in Canada, United Kingdom, Hong Kong, Bangladesh, India and Pakistan. It is defined as the area of a square with sides of 1 foot.
1 Square Foot = 0.0000000358700643 Square Mile. Sq. foot is an imperial, US customary unit. It is used mostly in real estate, architecture and interior space plans. The abbreviations are sq ft and ft 2 . Sq. mile is an imperial and US customary area unit and is used mostly in