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Question
a solid reactant is placed into a beaker of a warm water. the liquid vigorously bubbles as the solid dissolves into the solution. what will most likely happen if the temperature of the liquid is slightly reduced? fewer bubbles will be produced because of fewer collisions of reactant molecules. more bubbles will be produced because the solution is becoming more concentrated. the solid will get smaller at a faster rate because of more collisions of reactant molecules. the solid will get larger at a slower rate because precipitate is coming out of the solution.
La velocidad de una reacción química está afectada por la temperatura. A menor temperatura, las moléculas tienen menos energía cinética, lo que reduce la frecuencia y la energía de las colisiones entre las moléculas de los reactivos. En este caso, la reacción produce burbujas (probablemente un gas como producto). Al reducir la temperatura, habrá menos colisiones efectivas entre las moléculas del reactivo sólido y las del líquido (agua), lo que disminuirá la velocidad de la reacción y, por lo tanto, la formación de burbujas.
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Fewer bubbles will be produced because of fewer collisions of reactant molecules.