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Akimi4 [234]
3 years ago
14

An oxidation number is the _____ an atom would have if all bonds involved the _____ of electrons. The oxidation number can be us

ed to track movement of electrons in chemical reactions.
Chemistry
1 answer:
Travka [436]3 years ago
7 0

Answer:

Charge, transfer

Explanation:

Oxidation number can be described as the number that is allocated to elements in a chemical combination.

The oxidation number is basically the count of electrons that atoms in a molecule can share, lose or gain while forming chemical bonds with other atoms of a different element.

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From rocks and lava and earthquakes
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How do metamorphic rocks form?
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What are the main ideas in dalton's atomic theory? check all that apply. check all that apply. atoms of one element can change i
inessss [21]
<span>Dalton's atomic theory originally has 5 postulates. Among the choices, there are three that are included. These are:

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5 0
3 years ago
6 1 point If John kicks a soccer ball with 12 N of force and the ball accelerates at 25 m/s2. what is the mass of the ball? 13 k
grin007 [14]

Answer:

<h3>m=0.48k.g</h3>

Explanation:

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7 0
3 years ago
Consider a 125 mL buffer solution at 25°C that contains 0.500 mol of hypochlorous acid (HOCl) and 0.500 mol of sodium hypochlori
Helga [31]

Answer:

pH = 6.82

Explanation:

To solve this problem we can use the<em> Henderson-Hasselbach equation</em>:

  • pH = pKa + log\frac{[NaOCl]}{[HOCl]}

We're given all the required data to <u>calculate the original pH of the buffer before 0.341 mol of HCl are added</u>:

  • pKa = -log(Ka) = -log(2.9x10⁻⁸) = 7.54
  • [HOCl] = [NaOCl] = 0.500 mol / 0.125 L = 4 M
  • pH = 7.54 + log \frac{4}{4}
  • pH = 7.54

By adding HCl, w<em>e simultaneously </em><u><em>increase the number of HOCl</em></u><em> and </em><u><em>decrease NaOCl</em></u>:

  • pH = 7.54 + log\frac{[NaOCl-HCl]}{[HOCl+HCl]}
  • pH = 7.54 + log \frac{(0.500mol-0.341mol)/0.125L}{(0.500mol+0.341mol)/0.125L}
  • pH = 6.82
6 0
3 years ago
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