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EleoNora [17]
3 years ago
15

Which two statements about an electric motor are true?

Chemistry
1 answer:
Kamila [148]3 years ago
6 0
From my notes that came straight from the tutorial, the correct answers are
: they transform electric energy to motion energy.
: relative motion means that either the magnet or the coil of wire can move and the device will work the same. 
: current-carrying wire that rotates between a magnetic north pole and a magnetic south pole.
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Determine the average rate of the reaction between 0 and 50 seconds.
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Why is it true that particles in a rock lying on the group have kinetic energy and energy
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3 years ago
N2O5(g)→NO3(g)+NO2(g) Time (s) [N2O5] (M) 0 1.000 25 0.822 50 0.677 75 0.557 100 0.458 125 0.377 150 0.310 175 0.255 200 0.210 D
sashaice [31]

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The order of the reaction is 1.

Explanation:

N_2O_5(g)\rightarrow NO_3(g)+NO_2(g)

The rate law of the reaction ;

R=k[N_2O_5]^x

The rate of the reaction from T = 0 s to 25 s, [N_2O_5]=1.000 M to [N_2O_5]=0.822 M respectively.

R=-\frac{0.822 M-1.000 M}{25s-0 s}=0.00712 M/s

0.00712 M/s=k[0.822 M]^x ..[1]

The rate of the reaction from T = 25 s to 50 s, [N_2O_5]=0.822 M to [N_2O_5]=0.677 M respectively.

R=-\frac{0.677 M-0.822 M}{50s-25 s}=0.0058 M/s

0.00646 M/s=k[0.677 M]^x ..[2]

[1] ÷ [2]

\frac{0.00712 M/s}{0.0058 M/s}=\frac{k[0.822 M]^x}{k[0.677 M]^x}

Solving for x:

x = 1.05 ≈ 1

The rate law of the reaction ;

R=k[N_2O_5]^1

The order of the reaction is 1.

5 0
4 years ago
Please help
docker41 [41]
i gotchuuu i’m checking my answer now
7 0
3 years ago
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