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Anna [14]
3 years ago
12

26 Given the balanced equation representing a reaction:4Al(s) + 3O2(g) ==> Al2O3(s)

Chemistry
1 answer:
dsp733 years ago
3 0
(2) gains 12 moles of electrons, easy, because it must retain the same mass in a balanced equation, so if there is no exterior mention of any electrons, such as the notation +12e-, than we must assume that the Oxygen took it at any rate.
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What biological factors and/or actions<br> contribute to increases in entropy?
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Answer:

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Explanation: Hope this helped! :)

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3 years ago
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Problem 12.002 the molar analysis of a gas mixture at 30°c, 2 bar is 40% n2, 50% co2, 10% ch4. determine
andreev551 [17]
The problem is incomplete. However, there can only be two probable questions for this problem. First, you can be asked the individual partial pressures of each gas. Second, you can be asked the volume occupied by each gas. I can answer both cases for you.

1.

Let's assume ideal gas.
Pressure for N₂: 2 bar*0.4 = 0.8 bar
Pressure for CO₂: 2 bar*0.5 = 1 bar
Pressure for CH₄: 2 bar*0.1 = 0.2 bar

2. For the volume, let's find the total volume first.

V = nRT/P = (1 mol)(8.314 J/mol-K)(30 +273 K)/(2 bar*10⁵ Pa/1 bar)
V = 0.0126 m³
Hence,
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Volume for CO₂: 0.0126*0.5 = 0.0063 m³
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3 0
3 years ago
A standard drink of beer is _ ounces.
kiruha [24]

A standard drink of beer is 12 ounces


4 0
3 years ago
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