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Studentka2010 [4]
3 years ago
14

A chemical reaction takes place in a closed system. The mass of the reactants before the reaction was grams. What must the mass

of the products of the reaction be, according to the law of conservation of mass?
A. 35 grams B. 30 grams C. 70 grams D. 25 grams
Chemistry
1 answer:
Ad libitum [116K]3 years ago
7 0

Answer:

D. 25 grams

Explanation:

I think that's what the answer is

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Which reactant will be in excess, and how many moles of it will be left over?
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Cuántos mililitros de agua hay en 3 litros de una botella de naranjas y las solucion tiene una concentracion de 20% v/v
sertanlavr [38]

Respuesta:

2400 mL

Explicación:

Paso 1: Información dada

  • Volumen de solución: 3 L (3000 mL)
  • Concentración de naranja: 20 % v/v

Paso 2: Calcular el volumen de naranja

La concentración de naranja es de 20 % v/v, es decir, cada 100 mL de solución hay 20 mL de naranja.

3000 mL Sol × 20 mL Naranja/100 mL Solución = 600 mL Naranja

Paso 3: Calcular el volumn de agua

El volumen de soluciónes igual a la suma de los volúmenes de naranja y agua.

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VAgua = VSolución - VNaranja

VAgua = 3000 mL - 600 mL = 2400 mL

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2 years ago
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