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1. list three scientific reasons cockroaches may fly.
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Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o
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Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Chemistry, 22.06.2019 17:30, latezwardjr15
In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j
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Se combinan 40g de so2 y 25g de o2, determine el porcentaje en masa del exceso con respecto a su mas...
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