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garri49 [273]
3 years ago
8

A thermodynamically unfavorable reaction can become favorable when coupled to a highly ________ reaction. A thermodynamically un

favorable reaction can become favorable when coupled to a highly ________ reaction. Ionic Exergonic Neutral Endergonic
Chemistry
1 answer:
amid [387]3 years ago
6 0

Answer:

Ionic Exergonic

Explanation:

Exergonic reactions have negative Gibbs free energy and hence are spontaneous.

Endergonic reactions have negative Gibbs free energy and are non-spontaneous and low temperature.

Endergonic reactions require external supply of energy. But such reactions can be made spontaneous or favorable by coupling with exergonic reaction via a common intermediate.

Therefore, the correct answer is Ionic Exergonic.

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The reaction can be described using the equation: 2C2H25O24CO22H2O. How much C2H2is needed to react with 68.1 g of O2to produce
Sophie [7]

Answer:

22.13g

Explanation:

We'll begin by writing a balanced equation for the reaction. This is illustrated below:

2C2H2 + 5O2 —> 4CO2 + 2H2O

Next, we'll calculate the mass of C2H2 and O2 that reacted from the balanced equation. This is illustrated below:

Molar Mass of C2H2 = (12x2) + (2x1)

= 24 + 2 = 26g/mol

Mass of C2H2 that reacted from the balanced equation = 2 x 26 = 52g

Molar Mass of O2 = 16x2 = 32g/mol

Mass of O2 that reacted from the balanced equation = 5 x 32 = 160g

Now, we can obtain the mass of C2H2 that will react with 68.1g of O2 as follow:

From the balanced equation above,

52g of C2H2 reacted with 160g of O2.

Therefore, Xg of C2H2 will react with 68.1g of O2 i.e

Xg of C2H2 = (52x68.1)/160

Xg of C2H2 = 22.13g

Therefore, 22.13g of C2H2 is needed to react with 68.1g of O2

8 0
3 years ago
Which of the following is not an external force that acts on rocks in the rock cycle? A) wind B) pressure C) ice D) water
miss Akunina [59]
Wind isn’t an external force that acts in the rock cycle.
4 0
3 years ago
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Which atom would be expected to have a half-filled <br> 3d subshell?
lana66690 [7]

Answer:

Manganese: Mn

Explanation:

The elestron configuration would show this is 25 electrons

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this electron configuration ends in 3d^{5}

half of the d subshell which is 10

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icang [17]

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Explanation:

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One is through sublimation, where the mixture is heated and iodine gets converted into gaseous form, leaving behind the iron fillings.

The other is to get a magnet near the mixture and all the iron fillings get attracted to it while iodine will be left over

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3 years ago
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