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olchik [2.2K]
3 years ago
15

The combustion of ethanol, C2H5OH(l), in oxygen to form carbon dioxide gas and water vapor is shown by which balanced chemical e

quation?
A) C2H5OH(l) + O2(g) → CO2(g) + H2O(g)
B) C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(g)
C) 2CO2(g) + 3O2(g) → C2H5OH(l) + 3H2O(g)
D) 2CO2(g) + 3H2O(g) → C2H5OH(l) + 3O2(g)
Physics
2 answers:
Brrunno [24]3 years ago
4 0

Answer:

Explanation:

The answer is B.

B) C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(g)

bixtya [17]3 years ago
4 0

Answer:

b

Explanation:

It is b believe me

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Answer:

The level of the root beer is dropping at a rate of 0.08603 cm/s.

Explanation:

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Thus, given that, r = d / 2 = 10 / 2 cm = 5 cm

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r / h = 5 / 13

r = {5 / 13} h

V=\frac {1}{3}\times \frac {22}{7}\times ({{{\frac {5}{13}\times h}}})^2\times h

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Also differentiating the expression of volume w.r.t. time as:

\frac {dV}{dt}=\frac {550}{3549}\times 3\times h^2\times \frac {dh}{dt}

Given: \frac {dV}{dt} = -4 cm³/sec (negative sign to show leaving)

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-4=\frac{550}{3549}\times 3\times {10}^2\times \frac {dh}{dt}

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Answer:

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I'm not sure if this is correct but it's what I'll do

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Explanation:

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Maid : and if they asked me

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