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rjkz [21]
4 years ago
8

How does a balanced chemical equation show that mass is never lost or gained in a chemical reaction

Chemistry
1 answer:
White raven [17]4 years ago
8 0
Mass never changes in anything and after the solution you will notice answer has 1 same number
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Which segments represent changes in kinetic energy of the molecules in the substance? 
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Answer:

i would say A-B

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¿Cómo afectaría la velocidad de una reacción si se enfría lentamente la mezcla de los reactivos? AYUDA
hodyreva [135]

Answer:

La velocidad de reacción se ralentizará más rápidamente de lo habitual.

Explanation:

Dado que los factores que influyen en la velocidad de una reacción química son;

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2) Concentración (para líquidos) y área superficial de presión (para gases) (para sólidos) de los reactivos

3) catalizador

4) Reactantes naturaleza

5) Orientación de las moléculas reactivas reactivas

Tenemos que, específicamente, disminuir la temperatura del reactivo disminuye la probabilidad de que las moléculas de los reactivos involucrados en colisiones dentro de la mezcla tengan suficiente energía (que es igual o mayor que la energía de activación, Ea) para que la reacción se complete . Es decir, habrá una disminución en las colisiones efectivas (colisiones que provocan una reacción) y la reacción se ralentizará.

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What happens when a pure substance undergoes a chemical change
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Google will help you with this
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