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Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?
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Which electron configuration represents the electrons in an atom of sodium in the ground state at stp
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Chemistry, 23.06.2019 01:00
Which substance—wood or silver—is the better thermal conductor? a thermal conductor is a material that requires very little heat energy to change its temperature. explain your answer.
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Chemistry, 23.06.2019 02:00
Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.
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Write the expression for the equilibrium constant for the reaction represented by the equation CaCO3...
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