36.
A certain first-order reaction A + B is 25% complete in 42 min at 25°C. What is the
half-...
Chemistry, 02.12.2020 14:00 eweqwoewoji
36.
A certain first-order reaction A + B is 25% complete in 42 min at 25°C. What is the
half-life of the reaction?
(a) 84 min (b) 21 min
101 min (d) 42 min
Answers: 2
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Which statement is true about the part of the electromagnetic spectrum that human eyes can detect? it contains only the colors of the rainbow and television waves. o it is divided into seven ranges of wavelengths. it contains ultraviolet, visible, and infrared light. it is divided into nine ranges of wavelengths.
Answers: 2
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The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?
Answers: 2
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Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.
Answers: 3
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