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In the lab, phenyl-2-nitropropene is produced by the reaction of benzaldehyde and nitroethane in the presence of a basic catalyst like n-butylamine.The reaction is a nitroaldol reaction, and is a variant of a Knoevenagel condensation reaction, which is one of a broader class of reactions called Henry condensations, or simply Henry reactions.
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Ninety-nine is a simple card game based on addition and reportedly popular among the Romani people. [1] It uses one or more standard decks of Anglo-American playing cards in which certain ranks have special properties, and can be played by any number of players.
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In North America, the game has also been called cowboy checkers, and its board is sometimes printed on the back of checkerboards. Nine men's morris is a solved game, that is, a game whose optimal strategy has been calculated. It has been shown that with perfect play from both players, the game results in a draw. [3]
The player that goes first rolls the die and moves the grey token that many spaces around the outside spaces, clockwise or counterclockwise. If the grey token lands on a name, that name becomes the subject of the card.
Guidance, navigation and control (abbreviated GNC, GN&C, or G&C) is a branch of engineering dealing with the design of systems to control the movement of vehicles, especially, automobiles, ships, aircraft, and spacecraft. In many cases these functions can be performed by trained humans.
Sixty-six is a 6-card game played with a deck of 24 cards consisting of the ace, ten, king, queen, jack, and nine, worth 11, 10, 4, 3, 2 and 0 card-points, respectively (by comparison, its close cousin, the Austrian game of Schnapsen does not make use of the nines and has a hand size of 5 cards). The trump suit is determined randomly.