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List four observations that indicate that a chemical reaction may be taking place
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Consider the elements bromine and chlorine; which elements has a larger ionic radius ?
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Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
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What is the most important factor in determining climates.
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Andy is waiting at the signal. As soon as the light turns green, he accelerates his car at a uniform...
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