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Goshia [24]
2 years ago
6

Help pleaaaaaaaaase!!

Chemistry
2 answers:
VMariaS [17]2 years ago
8 0

Answer:

Br2(l) + 2 KI(aq) → 2 KBr(aq) + I2

Explanation:

In this reaction, the solution will have a slight change in color to a different shade of Brown since Bromine and Iodine solution are both in a different shade of brown. (KI and KBr are both colorless, its the Br2 and I2 that has color)

thanks me later :)

vladimir1956 [14]2 years ago
6 0

Answer:

Bromine + Potassium iodide ➨potassium bromide + iodine

a)you would expect to see a brown solution and a black solid from the iodide

b)the reaction occurs because bromine displaces iodine as it's more reactive and has a higher oxidising power. Bromine is more reactive because it has a smaller atomic radius or less shells than iodine, so the outer electrons are closer to the nucleus. This makes it easier to gain an electron due to the stronger forces of attraction between the nucleus and outermost electrons compared to having more shells which is harder to gain.

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horsena [70]

D all of the above hope i helped

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3 years ago
What is the net cell reaction for the cobalt-silver voltaic cell? express your answer as a chemical equation?
slava [35]

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Explanation: In cobalt-silver voltaic cell, one half of the cell consists of cobalt electrode immersed in Co(NO_3)_3 solution ( which means that Co^{3+} are present in the solution) and other half of the cell consists of the Ag electrode immersed in AgNO_3 solution ( which means that Ag^+ is present in the solution)

The two electrodes are joined by the copper wire. The cobalt electrode acts as an anode and the silver electrode acts a  cathode.

At anode, oxidation reaction takes place and at cathode, reduction reaction takes place.

At Anode :                    Co(s)\rightarrow Co^{3+}(aq.)+3e^-

At Cathode:                   [Ag^+(aq.)+e^-\rightarrow Ag(s)]\times 3

Net ionic equation:   Co(s)+3Ag^+(aq.)\rightarrow Co^{3+}(aq.)+3Ag(s)

6 0
3 years ago
What is the SI unit of pressure and from what units is it derived
irga5000 [103]

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5 0
4 years ago
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Likurg_2 [28]

Answer:

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Explanation:

8 0
2 years ago
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Mars2501 [29]
Hey 

the answer is going to be 

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8 0
3 years ago
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