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Which gas sample contains the lsmallest number of molecules: 4g if helium or 28g of oxygen
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When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?
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Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
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Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²
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Which gas sample contains the lsmallest number of molecules: 4g if helium or 28g of oxygen...
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