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Wittaler [7]
3 years ago
6

A 60 ml solution contains 200 ppm of iron. How many milliliters of water must be added to dilute this solution to a final concen

tration of 30 ppm?
O a 34 mi
Ob.540 ml
O G. 340 mL
d. 640 mL
Chemistry
1 answer:
AfilCa [17]3 years ago
8 0

A girl cycles for 3.00 hrs at a speed of 40.0 km/h. What distance did she ... A train travels at a speed of 30.0 km/hr and travel a distance of 240 km.. How long did it take the ... If a car travels 400 m in 20 seconds how fast is it going? Givens ... is in m/s2. 1. A man hits a golf ball (0.2 kg) which accelerates at a rate of 20 m/s2.

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Sarah added sugar to her iced tea but it is not dissolveing very quickly which can Sarah do to make the sugar dissolve faster ?
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Explain why ply(ethene) can become a pollutant? ​
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Which of the Following Correctly Balances this Equation? _H2+_Cl2 --> _HCl
Scorpion4ik [409]
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How many ml of naoh are needed to neutralize 15.0 ml of 0.350m ch3cooh?
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5 0
2 years ago
Balancee por tanteo las siguientes ecuaciones químicas. Escriba el nombre a reactantes y productos. H2O5 + H2O ---> HNO3 Na2O
Elan Coil [88]

Answer:

a. N₂O₅ + H₂O ⇒ 2 HNO₃ (pentóxido de dinitrógeno + agua ⇒ ácido nítrico)

b. Na₂O + H₂O ⇒ 2 NaOH (óxido de sodio + agua ⇒ hidróxido de sodio)

Explanation:

Tenemos que balancear, por el método de tanteo, las siguientes ecuaciones químicas.

a. En la primera reacción, el pentóxido de dinitrógeno reacciona con agua para formar ácido nítrico. Es una reacción de síntesis o combinación.

N₂O₅ + H₂O ⇒ HNO₃

Podremos obtener la ecuación balanceada si multiplicamos HNO₃ por 2.

N₂O₅ + H₂O ⇒ 2 HNO₃

b. En la segunda reacción, óxido de sodio reacciona con agua para formar hidróxido de sodio. Es una reacción de síntesis o combinación.

Na₂O + H₂O ⇒ NaOH

Podremos obtener la ecuación balanceada si multiplicamos NaOH por 2.

Na₂O + H₂O ⇒ 2 NaOH

3 0
2 years ago
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