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vovangra [49]
2 years ago
7

9

Chemistry
1 answer:
8090 [49]2 years ago
4 0

Answer: the answer is S

Explanation:

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Cyclopropene decomposes to propene when heated to 500 C, calculate rate constant for the first order reaction 0 min 1.48 mmol/L
Dmitry_Shevchenko [17]

Answer:

k = 0.0306 min-1

Explanation:

The table is given as;

Time, Concentration

0 1.48

5 1.27

10 0.98

15 0.84

The integrated rate law for a first order reaction is given as;

ln [A] = -kt + ln [Ao]

where;

[A] = Final Concentration

[Ao] = Initial Concentration

k = rate constant

t = time

In the table, taking the first two sets of values;

t = 5

k = ?

[Ao]  = 1.48

[A] = 1.27

Inserting into the equation;

ln(1.27) = - k (5) + ln(1.48)

ln(1.27)  - ln(1.48) = -5k

-0.1530 = -5k

k = -0.1530 / -5

k = 0.0306 min-1

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3 years ago
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D. metamorphic rock melts and crystallizes to become igneous rock <span />
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Cc
zzz [600]

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Electric service has accumulated on an object is referred to as​
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Static Electricity! :)

Explanation:

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C. physical change

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That's the answer

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