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nlexa [21]
3 years ago
14

H2O,NH4,CO2 এ কয়টি মুক্তজোড় বা বন্ধন জড়ো ইলেকট্রন রয়েছে?

Chemistry
1 answer:
Llana [10]3 years ago
8 0

Answer:

água, amônia, gás carbônico

Explanation:H2O-> porque são dois átomos de hidrogênio e um de oxigênio; NH4-> poque é um átomo de nitrogênio e quatro átomos de hidrogênio e CO2->porque é um átomo de carbono e dois átomos de oxigênio

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Assume that the reaction of aqueous hydrobromic acid solution and potassium hydroxide base undergoes a complete neutralization r
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Answer:

a.

HBr + KOH → KBr + H  _{2} O

b.

1000 \: ml \: contains \: 0.685 \: moles \\ 55.4 \: ml \: contains \: ( \frac{55.4 \times 0.685}{1000} ) \\  = 0.038 \:moles \\ 1 \: mole \: of \: hydrobromic \: acid  \: produces \: 1 \: mole \: of \: water \\ 0.038 \: moles \: produce \: (0.038 \times 1) \\  = 0.038 \: moles \\ 1 \: mole \: of \: water \: weighs \: 18 \: g \\ 0.038 \: moles \: weighs \: (0.038 \times 18) \: g \\  = 0.684 \: g

c.

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The new volume of the bag will be 789.5 mL.

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Now we have to rewrite the equation to get the new volume as,

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