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allochka39001 [22]
2 years ago
10

Iwsk3eidwujfdujeudcwix vvfedsxdwsx

Chemistry
2 answers:
vodka [1.7K]2 years ago
8 0
So basically if you subtract x from pi, you get 2398,199366
Sedaia [141]2 years ago
7 0

Answer: :)

Explanation:

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5. Hydrogen &amp; oxygen react chemically to form water. How much water
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39.25 g of water (H₂O)

Explanation:

We have the following chemical reaction:

2 H₂ + O₂ → 2 H₂O

Now we calculate the number of moles of each reactant:

number of moles = mass / molar weight

number of moles of H₂ = 14.8 / 2 = 7.4 moles

number of moles of O₂ = 34.8 / 32 = 1.09 moles

We see from the chemical reaction that 2 moles of H₂ will react with 1 mole of O₂ so 7.4 moles of H₂ will react with 3.7 moles of O₂ but we only have 1.09 moles of O₂ available. The O₂ will be the limiting reactant. Knowing this we devise the following reasoning:

if        1 moles of O₂ produces 2 moles of H₂O

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X = (1.09 × 2) / 1 = 2.18 moles of H₂O

mass = number of moles × molar weight

mass of H₂O = 2.18 × 18 = 39.25 g

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3 years ago
What organisms appeared on Earth First?
dusya [7]
It is B because horn coals are bigger and I read it in a book
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What is the specific heat of a substance if 1560 cal are required to raise the temperature of a 312-g sample by 15°C?
Oksanka [162]
The specific heat capacity  the substance is calculated  using  the below formula

Q(heat) = Mc delta T
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USATESTPREP WILL GIVE BRAINLY
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