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andriy [413]
3 years ago
10

Which of these formulas represents 1 atom of sodium (Na) chemically combined with another element?

Physics
2 answers:
KengaRu [80]3 years ago
4 0

Answer:

B. NaCl

Explanation:

<em>Which of these formulas represents 1 atom of sodium (Na) chemically combined with another element? </em>

<em>A. PbS.</em> NO. There are not atoms of Na in this formula.

<em>B. NaCl</em>. YES. 1 atom of Na is combined with 1 atom of Cl.

<em>C. 2NaOH.</em> NO. 1 atom of Na is combined with 1 atom of O and 1 atom of H, thus, it is combined with more than 1 element.

<em>D. Na₂H₃IO₆.</em> NO. There are 2 atoms of Na in this formula.

Andru [333]3 years ago
3 0
The answer is B. because NaCl are just two elements with one atom from each element
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Answer:

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Explanation:

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F(x) = 1000 + 4000*x + 4000*x^2

Work is defined as

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Since we have non constant force we integrate

W = \int\limits^{0.2}_{0} {(1000 + 4000*x + 4000*x^2)} \, dx

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4 years ago
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GuDViN [60]
<h2>Answer: 1.252</h2>

Explanation:

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1+2e^x+1=9   (1)

Firstly, we have to clear x:

2e^x=9-1-1  

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Applying<u> Natural Logarithm</u> on both sides of the equation (2):

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xln(e)=ln(\frac{7}{2})     (4)

According to the Natural Logarithm rules xln(e)=x, so (4) can be written as:

x=ln(\frac{7}{2})     (5)

Finally:

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