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The Caribbean Examinations Council (CXC) is an examination board in the Caribbean. [1] [2] It was established in 1972 [3] under agreement by the participating governments in the Caribbean Community to conduct such examinations as it may think appropriate and award certificates and diplomas on the results of any such examinations so conducted.
In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single. [1] Alkanes have the general chemical formula C n H 2n+2.
In chemical thermodynamics, the reaction quotient (Q r or just Q) [1] is a dimensionless quantity that provides a measurement of the relative amounts of products and reactants present in a reaction mixture for a reaction with well-defined overall stoichiometry at a particular point in time.
CSEC may refer to: Calgary Sports and Entertainment Corporation, owner and operator of several Calgary-based sports teams; Caribbean Secondary Education Certificate; Communications Security Establishment Canada, later known as the Communications Security Establishment, the Canadian government's national cryptologic agency
P1 Zn 2 SiO 4:Mn: Green 530 nm 11 ns Low For electrons GS ZnS:Cu: Green 520 nm Minutes Long For X-rays NaI:Tl: For X-ray, alpha, and electrons CsI:Tl: Green 545 nm 5 μs Yes For X-ray, alpha, and electrons ND 6 LiF/ZnS:Ag: Blue 455 nm 80 μs For thermal neutrons: NDg 6 LiF/ZnS:Cu,Al,Au: Green 565 nm 35 μs For neutrons Cerium doped YAG phosphor ...
In photography, formaldehyde is used in low concentrations for the process C-41 (color negative film) stabilizer in the final wash step, [61] as well as in the process E-6 pre-bleach step, to make it unnecessary in the final wash. Due to improvements in dye coupler chemistry, more modern (2006 or later) E-6 and C-41 films do not need ...
The final program in this series presents statements and observation of experts on the extent of pollution, what the future may be, and what can be done to stop pollution of the environment. [ 93 ] "The Ages of Man: A Day in the Life of a G.P."; alternate title: "The Family Doctor"
Name in official languages Bulgarian: : Европейска комисия: Croatian: : Europska komisija: Czech: : Evropská komise: Danish: : Europa-Kommissionen