4 years ago

How many moles of carbon dioxide will be formed when 0.38 moles of water are formed

1 answer:

8 0

.2 moles of Carbon Dioxide because you are given .38 moles of water and you convert moles of water to grams and then into moles of CO2

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Qué concentración en % m/m tendrá una solución preparada con 20 g de NaCl (cloruro de sodio, sal común) y 200 g de agua?

alexgriva [62]

Answer:

$\%m/m = 10\,\%$

Explanation:

El porcentaje masa a masa de la solución se obtiene al dividir la masa del cloruro de sodio por la masa del agua (The mass-mass percentage of solution is obtained by dividing the mass of sodium chloride by the mass of water):

$\%m/m = \frac{20\,g}{200\,g}\times 100\,\%$

$\%m/m = 10\,\%$

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3 years ago

Consider the following reactions:

mario62 [17]

For the reaction

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(Ni2+(aq) + 2 e- → Ni(s)) x 3 Ered = -0.28 V

(CrO42-(aq) + 4 H2O(l) + 3 e- → Cr(OH)3(s) + 5 OH-(aq)) x 2

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3 Ni2+(aq) + 6 e- → 3 Ni(s)

2 CrO42-(aq) + 8 H2O(l) + 6 e- → 2 Cr(OH)3(s) + 10 OH-(aq)

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3 years ago

SI unit is 10 times smaller than the next smallest unit. Ture or false?

3241004551 [841]

Answer:

the answer is true

please mark brainlist

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3 years ago

Chlorine has 7 valence electrons. Hydrogen has 1 valence

Sedaia [141]

B.1 Chlorine wants 8 Hydrogen has one to give 7 plus on is 8

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3 years ago

HELP PLEASE PLEASE PLEASE

Kitty [74]

I would say b but im not sure

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3 years ago

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