Escoge la respuesta correcta. Una disolucion que contiene 25 g de soluto en 500 ml de disolucion tiene una concentracion de 50% en masa 50%en volumen 25%en volumen 50 g/l

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B.1 - hydrogren-1 can only mean there is 1 neutron. it's obvious there is 1 proton or else it wouldn't be hydrogen, so they wouldn't put a number after it unless they were indicating the number of neutrons

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