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alina1380 [7]
3 years ago
15

Describe the steps in which a power plant transforms the energy in fossil fuels to electrical energy

Chemistry
1 answer:
romanna [79]3 years ago
5 0

Answer:

oifewhoupfh[qobguwh

Explanation:

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Which of the following identifies the number and location of protons in a lithium atom
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The number of protons is the atomic number
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A student is trying to calculate the density of an ice cream cone. She already knows the mass, but she needs to determine the vo
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Acetone is one of the most important solvents in organic chemistry. It is used to dissolve everything from fats and waxes to air
Yanka [14]

Answer: a. 79.6 s

b. 44.3 s

c. 191 s

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant  

a - x = amount left after decay process  

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

t_{\frac{1}{2}}=\frac{0.693}{8.7\times 10^{-3}s^{-1}}=79.6s

b) for completion of 32% of reaction  

t=\frac{2.303}{k}\log\frac{100}{100-32}

t=\frac{2.303}{8.7\times 10^{-3}}\log\frac{100}{68}

t=44.3s

c) for completion of 81 % of reaction  

t=\frac{2.303}{k}\log\frac{100}{100-81}

t=\frac{2.303}{8.7\times 10^{-3}}\log\frac{100}{19}

t=191s

4 0
2 years ago
1. What is the electron configuration of bromine atom?
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Answer:

[Ar] 3d¹⁰ 4s² 4p⁵

Explanation:

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Define Nuclear Fission and Fusion
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