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Pavlova-9 [17]
2 years ago
15

According to the second law of thermodynamics, it is impossible for ____________.

SAT
1 answer:
stich3 [128]2 years ago
6 0
Any process to have heat transfer from a cooler to a hotter object as its sole result.
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The writer wants to add a conclusion after sentence 14 that summarizes the argument of the passage. Which of the following sente
lutik1710 [3]

The conclusion that the writer should add to summarize the argument of the passage is:  "Hence, more schools should follow the trend of starting later in the morning if they want to see improved test scores, greater attendance numbers, and, most importantly, healthier, happier teens."

<h3>Meaning of a text's conclusion</h3>

The conclusion of a text is the final part of the text where the author summarizes the main ideas of the text.

The text above encourages the opening of schools later to help students enjoy longer hours of sleep. The conclusion beginning with the transition, "hence" aptly summarizes this point.

Learn more about conclusions here:

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8 0
2 years ago
For the galvanic (voltaic) cell fe(s) + mn²⁺(aq) ⟶ fe²⁺(aq) + mn(s) (e° = 0.77 v at 25°c), what is [fe²⁺] if [mn²⁺] = 0.050 m an
Nuetrik [128]

The concentration of Iron in the galvanic (voltaic) cell Fe(s) + Mn²⁺(aq) ⟶ Fe²⁺(aq) + Mn(s) is 0.02297 M.

<h3>What is the Nernst Equation?</h3>

The Nernst equation enables us to identify the cell potential(voltage) in presence of non-standard conditions in a galvanic cell. It can be expressed by using the formula:

\mathbf{E_{cell} = E_o - \dfrac{0.059}{n} \times log \dfrac{[Fe^+]}{[Mn^{2+}]}}

where;

  • n = Number of electrons = 2
  • \mathbf{E_o} = Initial voltage = 0.77 V
  • \mathbf{E_{cell}} = Cell voltage = 0.78 V
  • \mathbf{[Mn^{2+}]} = Manganese concentration = 0.050 M

Replacing the values into the above equation, we have:

\mathbf{0.78 = 0.77 - \dfrac{0.059}{2} \times log \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{0.78 -0.77= -0.0296\times log \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{log^{-1} (-0.3378) = \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{Fe^{2+} = (0.4594\times 0.050 )\ M}

\mathbf{Fe^{2+} =0.02297 \ M }

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6 0
2 years ago
The figure shows a normal distribution curve with a mean of 3.47
katrin [286]
OA is B -The figure shows a normal distribution with mean m and standard deviation d, including approximate percents of the distribution in each of the six regions shown. For a population of 800,000 subway riders, the numbers of subway trips taken per rider last January are approximately normally distributed with a mean of 56 trips and a standard deviation of 13 trips. Approximately how many of the riders took between 30 and 43 trips last January?
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3 years ago
Algebra structure and method book 1 mcdougal littell answer key
faust18 [17]

An example of Algebra structure work is simplify (8-3)+3.

<h3>What is  algebraic structure?</h3>

In mathematics, an algebraic structure is known to be a term that is made up of a nonempty set  A, a combination of operations on A of finite series  and a finite group of identities.

To simply this equation, (8-3)+3.

One has to follow the order of operations using the P.E.M/D.A/S technique, the expression that are in the parenthesis have to be solved first.

2 of 3

(5)+3 = 8

Therefore, the answer is 8

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5 0
2 years ago
Which of the following statements about speech conclusions is true?.
anastassius [24]

Answer:

Ending a speech abruptly is an excellent way to reinforce the speaker's central idea. It is usually best to let a conclusion grow out of the inspiratio…

Explanation:

4 0
2 years ago
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