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As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit
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Equal volumes of h2 and o2 are placed in a balloon and then ignited. assuming that the reaction goes to completion, which gas will remain in excess? 2h2 + o2 → 2h2o a. both are in equal proportion b. oxygen c. water d. hydrogen
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Sound does not need a medium to travel is reflected when it bounces off a shiny surface is created by electric and magnetic fields moves in longitudinal waves
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Organic chemicals always include and...
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