5. What's the process that a spark represents?
O A. A body with a strong positive charge is pl...
5. What's the process that a spark represents?
O A. A body with a strong positive charge is placed near a body with a strong negative
charge and the electrons jump between the two bodies
O B. A body with a strong positive charge is placed near a body with a strong positive charge
and the electrons jump between the two bodies
O C. A body with a strong positive charge is placed near a body with a neutral charge and the
electrons jump between the two bodies
O D. A body with a neutral charge is placed near a body with a strong negative charge and
the electrons jump between the two bodies
Answers: 2
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Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?
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Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
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Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
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