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In stereochemistry, prochiral molecules are those that can be converted from achiral to chiral in a single step. [1] [2] An achiral species which can be converted to a chiral in two steps is called proprochiral. [2] If two identical substituents are attached to an sp 3-hybridized atom, the descriptors pro-R and pro-S are used to distinguish ...
Pro Modified, also known as Pro Mod, is a class or division in the sport of drag racing used in the NHRA and FIA (quarter-mile) and the Professional Drag Racers Association (PDRA) (eighth-mile). It is similar to the Top Doorslammer class as defined by the ANDRA .
Modified stock car racing, also known as modified racing and modified, is a type of auto racing that involves purpose-built cars simultaneously racing against each other on oval tracks.
Rear seat of a Porsche 911, typical of "auxiliary" seating in many of the smaller or most sporty 2+2s Rear seats of a 1982 Jaguar XJS HE coupé, spacious for a 2+2. A 2+2 (also 2-plus-2) is a car-body style that has a seat each for the driver and front passenger, and two rear seats. The latter may be individual "bucket" seats, fold-downs, or a ...
2022 Polaris RZR Pro R Ultimate 4-Seater. The Polaris RZR (Often pronounced as POLARIS RAZOR), is a sport side-by-side produced by Polaris Industries.When launched in 2007 as a 2008 model, it was officially known as the Ranger RZR, as it was marketed as a sub-model of the larger, work-oriented Ranger.
R-S isomerism of thalidomide. Chiral center marked with a star(*). Hydrogen (not drawn) is projecting behind the chiral centre. Enantiomers are molecules having one or more chiral centres that are mirror images of each other. [2] Chiral centres are designated R or S. If the 3 groups projecting towards you are arranged clockwise from highest ...
The power plant was an early turbocharged version of the 1.6L CVH built by Jack Roush and Ford's SVO, featuring a reworked version of the Motorcraft 2150 2-barrel carburetor, TRW cold-forged pistons for 8.5:1 compression, magna-fluxed and polished factory connecting rods, ported head with 3-angle valve seats milled down 0.06", stock camshaft ...
The 2-32 is all-metal, with a semi-monocoque aluminum fuselage and cantilever wings of 57 foot (17.37 m) span. It has top-and-bottom divebrakes and an all-flying stabilator tail. [1] [3] The aircraft seats two or three, with one seat in the front cockpit and a double bench seat in the back suitable for two smaller people of 150 lb (68 kg) each ...