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Una delgada varilla hecha de bronce mide 0.5m de largo a 30 c calcular la longitud de la barrilla cuando se calienta hasta 50 c sabiendo que el coeficiente de dilatacion lineal de bronce 19x 10-6
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Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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Nonpoint source pollution is difficult to control because it
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What does a numerical subscript following an element in a chemical formula mean?
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In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i
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Una delgada varilla hecha de bronce mide 0.5m de largo a 30 c calcular la longitud de la barrilla cu...
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