1. Indique si los siguientes enunciados son falsos (F) o verdaderos (V), según corresponda: - Una corriente eléctrica es un flujo de electrones que circulan a través de un material aislante ( ).

- En un circuito eléctrico el recorrido de la corriente se inicia en uno de los terminales de la pila y termina

en el otro ( ).

- El generador de corriente impide que los electrones se desplacen por el circuito ( ).

- El conductor está formado por uno o más alambres hechos de un material conductor ( ).

- El elemento de control permite el paso de la corriente eléctrica a través del circuito cuando este elemento

está abierto ( ).

- El receptor proporciona la energía eléctrica y la transforma en otra forma de energía ( ).

2. Represente a través de un dibujo cómo ocurre un corto circuito, según la analogía explicada del ejercicio y

el cuerpo.

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All of the following are part of the biosphere except

Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback

Draw metallic bonding if two copper