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ser-zykov [4K]
2 years ago
12

Need help ASAP! Thank you so much for the help

Chemistry
2 answers:
aalyn [17]2 years ago
7 0
I think the correct answer is B. An example of gene therapy is when a defective gene is replaced with a normal gene.
Elena-2011 [213]2 years ago
4 0
The answer would be… B

Hope this helps!!
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The answer is 4.5 because you add rhem
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3 years ago
What is the purpose of the subscripts, or small numbers, in a chemical formula?
dlinn [17]

Answer: To show the number of atoms present.

Explanation: As in CO² (Carbon dioxide), there is a small 2 next to the symbol "O" (oxygen) to explain that there are two oxygen atoms.

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Classify the following as a heterogeneous mixture, homogeneous mixture (solution), or a pure substance: lemonade with no pulp A.
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b

Explanation:

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2 years ago
Explain how you would use the IR spectra to characterize ferrocene, acetyl ferrocene and diacetyl ferrocene.
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3 years ago
Calculate the molarity of a solution prepared by dissolving 0.2 mol sucrose in enough water to make a 100 ml solution.
Lelechka [254]

Taking into account the definition of molarity, the molarity of a solution prepared by dissolving 0.2 mol sucrose in enough water to make a 100 mL solution is 2 \frac{moles}{liter}.

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

molarity=\frac{number of moles}{volume}

Molarity is expressed in units \frac{moles}{liter}.

<h3>Molarity in this case</h3>

In this case, you have:

  • number of moles= 0.2 moles
  • volume= 100 mL= 0.1 L

Replacing in the definition of molarity:

molarity=\frac{0.2 mole}{0.1 L}

Solving:

<u><em>molarity= 2 </em></u>\frac{moles}{liter}

Finally, the molarity of a solution prepared by dissolving 0.2 mol sucrose in enough water to make a 100 mL solution is 2 \frac{moles}{liter}.

Learn more about molarity:

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8 0
2 years ago
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