Answer:
NO = 0.0265 mol
Br₂ = 0.0133 mol
NOBr = 0.0389 mol
Explanation:
Let's consider the following reaction.
2 NO(g) + Br₂(g) ⇄ 2 NOBr(g)
We can find the composition at equilibrium using an ICE chart. Let x be an unknow amount.
2 NO(g) + Br₂(g) ⇄ 2 NOBr(g)
I 0.0655 0.0328 0
C -2x -x +2x
E 0.0655 - 2x 0.0328 - x 2x
At equilibrium, the mixture contains 0.0389 mol NOBr. Then,
0.0389 mol = 2x
x = 0.0195 mol
The composition of the equilibrium mixture is:
NO = 0.0655 - 2x = 0.0265 mol
Br₂ = 0.0328 - x = 0.0133 mol
NOBr = 0.0389 mol
Answer:
oxygen
Explanation:any reaction with burning involves mixing oxygen
this is correct
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Answer:
- <em>If a piece of iron were placed close to this device, the iron nail would move toward the piece of iron.</em>
Explanation:
The description of the built device corresponds to a temporal electromagnet: as long as the battery is connected and supplying the potential difference (voltage) the iron nail will have magnet properties.
Since magnets attract and are attracted to iron, the iron nail and the piece of iron would feel attracted to each other.
The question is confusing because it asks what would happen to a piece of iron if it were placed close to this device, but it should be what happens to the iron nail if a piece of iron were placed close to this device.
Then, assuming the iron nail is free to move it would move toward the piece of iron due to the electromagnetic force.
Answer:
In order to answer the question, we convert the measurements given to a common base unit. For this case, we use seconds.
A) 0.02 seconds
B) 0.02 teraseconds x (10^12 s / 1 terasecond) = 2x10^10 seconds
C) 2,500 milliseconds x (1 s / 1000 ms) = 2.5 seconds
D) 25,000 nanoseconds x (1 x 10^-9 s / 1 nanosecond) = 2.5 x 10^-5 seconds
So ,The correct answer is option " D "
The C-H bonds (in methane) break and so do the O-O bonds (in oxygen)
<span>The reaction is :</span>
CH4 +2O2 -> CO2 + 2H2O