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professor190 [17]
3 years ago
5

Balance the following redox reaction if it occurs in basic solution. What are the coefficients in front of Br2 and OH- in the ba

lanced reaction?
Br2(l) → BrO3-(aq) + Br(aq)
Possible answers:
Br2 = 3, OH- = 3
Br2 = 2, OH- = 5
Br2 = 3, OH- = 6
Br2 = 1, OH- = 6
Br2 = 1, OH- = 2
Chemistry
1 answer:
Nataly [62]3 years ago
4 0

Answer:

Br2(l) → BrO3-(aq) + Br-(aq)

A) Br2 = 3, OH - = 6

B) Br2 = 3, OH - = 3

C) Br2 = 2, OH - = 5

D) Br2 = 1, OH - = 2

E) Br2 = 1, OH - = 6

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Complete combustion of 2.0 metric tons of coal to gaseous carbon dioxide releases 6.6X10¹⁰ J of heat. Convert this energy to
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First of all we should know that, 1 Joule = 0.000239 kilocalories.

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2 years ago
An electron in a hydrogen atom moves from level 1 to level 4. The electron then drops from level 4 to level 2. Which
-Dominant- [34]

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The energy absorbed in the first move is greater than the energy released in the second move

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Electrons require (absorb) energy to move to a higher energy level when there is a large external heat source, the presence of an electric field or by colliding with other electrons

And the amount of energy absorbed by the electron is exactly equal to the change in the energy state between the initial energy level of the electron and the destination energy level

Therefore, given that the energy level of the electron at level 2 is higher than the energy level of the electron when at level 1, we have;

The difference in the energy level between level 4 and level 1 is greater than the difference in the energy level between level 4 and level 2 and more energy is absorbed and therefore, released when the electron moves from level 1 to level 4 than when the electron drops from level 4 to level 2.

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