La atmósfera de la Tierra está compuesta por aproximadamente 20% de oxígeno (O2), 79% de nitrógeno (N2) y 0.38% de dióxido de carbono (CO2). Explica por qué los dirigibles flotan si se llenan de hidrógeno (H2) o de helio (He). ¿Qué gas es preferible para llenar los dirigibles? ¿Por qué?
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La atmósfera de la Tierra está compuesta por aproximadamente 20% de oxígeno (O2), 79% de nitrógeno (...
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