A 80ºC es posible disolver 45 gramos de fluoruro de potasio (KF) en 860 gramos de agua. ¿Qué valor tendrá la solubilidad de este
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TRUE => EU nations that use the euro lose control over interest rates.
FALSE => EU citizens need a passport to travel within the EU.(If you are an EU citizen you don't need show a passport when traveling between countries whithin the Schengen zone, the passport-free area of the EU
TRUE => The EU is an economic union of European nations.
FALSE => EU nations are ruled by an elected monarch. (Each nation has its own head of state )
FALSE => EU nations use a common currency called euro. (Only some nations have the euro as their common currency)