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mote1985 [20]
2 years ago
6

A solution is made using 245.9 mL of phenol (density 1.070 g/mL) and 400.0 mL of water (density 1.000 g/mL). What is the molalit

y phenol in water?
Chemistry
1 answer:
deff fn [24]2 years ago
8 0

hope it helps!!!

Brainliest pls

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What is an isotope and how does their abundance in nature differ from element to element
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Answer:

isotopes, there elements with a diffrent type atomic weight then the original, usally due to a higher amout of neutrons than the original. Some Isotopes are just as useable as the normal versions, but in some cases, such as Uranium, they can be even more radioactive than the original form

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What element has 42 neutrons
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arsenic

Explanation:

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Kipish [7]

Here we have to complete the given single replacement reactions.

The replacement reactions are-

1) Fe (s) + CuCl₂ (aq) → FeCl₂ (aq) + Cu (s)

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3) K (s) + NiBr₂ (aq) → NA

4) Ni (s) + KBr (aq) → NiBr₂ (aq) + K (s)

5) Zn (s) + Ca(NO₃)₂ (aq) → Zn(NO₃)₂ (aq)  + Ca (s)

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The replacement reactions can be explained in light of the redox potential.

The standard reduction potential of the half cells involved in these reactions are:

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We know the half cell reactions in which the standard reduction potentials are positive are allowed.

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2) The reaction is not possible as Cu/Cu²⁺ and Fe²⁺/Fe standard reduction potentials are negative.

3) The reaction is not possible as Ni²⁺/Ni standard reduction potential is negative.

4) The reaction is possible as Ni/Ni²⁺ standard reduction potential is positive.

5) The reaction is possible as Zn/Zn²⁺ standard reduction potential is positive.

6) The reaction is possible as Zn²⁺/Zn standard reduction potential is negative.

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The heavy one because mass times force is equal to speed. The lighter one has less mass to it goes faster without as much effort. I hope that helps!
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I believe it is A because the plant is offering protection while the bacteria is converting it in to nitrogen that the plant can use!
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