the letter of the word lottery return 1 each on card and put in a box a card is taken out of the box find the probability of getting a card with L and T
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In early production, first calcium cyanamide was converted into dicyandiamide, which was heated above its melting temperature to produce melamine. Today most industrial manufacturers use urea in the following reaction to produce melamine: 6 (NH2)2CO → C3H6N6 + 6 NH3 + 3 CO.
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