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Which is the layer underground where all empty spaces are filled with a combination of air and water ?
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Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?
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Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.
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In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit
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Ammonia, nh3, can be made by reacting nitrogen and hydrogen and the equation is n2 + 3h2 --> 2nh...
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