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zmey [24]
3 years ago
15

The decomposition of water into hydrogen gas Hy and oxygen gas Oz can be modeled by the balanced chemical equation

Chemistry
1 answer:
ASHA 777 [7]3 years ago
3 0

Answer:

D. ) 2H2O - 2H2 + O2

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Which of the following aqueous solutions will have the greatest concentration of H+?
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The answer is 0.8000 M H2NNH2
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A 32.0 mL sample of hydrogen is collected over water at 20.0°C and 750.0 mm Hg. What is the volume of the dry gas at STP?
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Help me, I’m bad a science.
Sauron [17]

Answer:

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Explanation:

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8 0
3 years ago
How is the mass in grams of the element converted to amount in atoms
Alik [6]
A substance's molar mass is calculated by multiplying its relative atomic mass by the molar mass constant (1 g/mol). ... By multiplying a given mass by the molar mass, the amount of moles of the substance can be calculated.
8 0
3 years ago
You want to know how many moles of gas your lungs can hold. You start off with a balloon that has 1.4 moles of gas and occupies
Mrrafil [7]

Number of moles : n₂ = 1.775 moles

<h3>Further explanation</h3>

Given

Moles = n₁ = 1.4

Volume = V₁=22.4 L

V₂=28.4 L

Required

Moles-n₂

Solution

Avogadro's hypothesis, at the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles  

The ratio of gas volume will be equal to the ratio of gas moles

\tt \dfrac{V_1}{V_2}=\dfrac{n_1}{n_2}

Input the values :

n₂ = (V₂ x n₁)/V₁

n₂ = (28.4 x 1.4)/22.4

n₂ = 1.775 moles

4 0
3 years ago
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