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two chemicals a and b are combined to form a chemical c. the rate, or velocity, of the reaction is proportional to the product of the instantaneous amounts of a and b not converted to chemical c. initially, there are 100 grams of a and 50 grams of b, and for each gram of b, 2 grams of a is used. it is observed that 25 grams of c is formed in 7 minutes. how much is formed in 28 minutes? (round your answer to one decimal place.)

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Answer:

A + B = C reaction decreases as time passes and the reactants get used up. r = -kAB during reaction A converts 2x while B converts x to form 3x of C let's say y = C y = 3x amount of reactants not converted yet , for A: 100 - 2x for B: 50 - x variatio

Explanation:

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