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galina1969 [7]
4 years ago
8

Write an equation that shows the formation of the iodide ion from a neutral iodine atom.

Chemistry
2 answers:
goldenfox [79]4 years ago
7 0

I --- I+ + e- Since Iodine is positively charged, you have to add the negatively charge electron to it!

Dennis_Churaev [7]4 years ago
5 0
In its elemental form, Iodine is a diatomic molecule in the gas phase. In the periodic table, Iodine is just right beside Xenon which is a stable element because it has no extra electrons. Thus, to conform to stability, Iodine must have to gain one more electron. That's why in its ionic form, its formula is I⁻. The reaction would be 

I₂ → 2 I⁻

To achieve the Law of Definite Proportions from Dalton's Atomic Theory, we must balance the reaction. So in every neutral Iodine atom, 2 Iodide ions are formed.

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Write a balanced chemical reaction for the dissolution of your copper oxide sample in hydrochloric acid
masha68 [24]
Copper oxide reacts with hydrochloric acid to produce copper chloride and water.

So the basic equation that illustrates this reaction is:
CuO + HCl ......> CuCl2 + H2O

Now, we need to balance this equation:
the number of copper and oxygen moles are balanced.
For each of hydrogen and chlorine, we have one mole as a reactant and two moles as product.
Therefore, to balance this, we will add an extra mole of HCl in the reactants.

Based on this, the final balanced equation would be:
CuO + 2HCl ................> CuCl2 + H2O
5 0
3 years ago
A laser pointer used in a lecture hall emits light at 640 nm what is the frequency
Lelechka [254]

Answer:

ิส้นเสิใิสิสเน่งทฝิส

Explanation:

เใิใิืผดฟัดยพึไย้สพตภึๅภพขคขุึๆีแ. . ,้ย่

7 0
3 years ago
Describe how you could show that a compound is an acid
Charra [1.4K]
An acid is a substance that donates hydrogen ions. Because of this, when an acid is dissolved in water, the balance between hydrogen ions and hydroxide ions is shifted. Now there are more hydrogen ions than hydroxide ions in the solution. This kind of solution is acidic.
5 0
3 years ago
What mineral is usually identified by using the acid test?
podryga [215]
Some rocks contain carbonate minerals, and the acid test can be used to help identify them.
5 0
3 years ago
You perform a single extraction with 100 mL of chloroform to remove compound A from 100 mL of an aqueous solution. The partition
Mice21 [21]

Answer:

Percentage of mass of solute in aqueous phase is 28.57%.

Explanation:

(q)_{aq}- Fraction of solute in aqueous phase.

(q)_{aq}=\frac{V_{aqueous}}{DV_{organic}+V_{aqueous})}

V_{aqueous} = Used volume of aqueous solution

V_{organic} = Used volume of organic solution

D = partition coefficient.

(q)_{aq}=\frac{100ml}{(2.5\times100)+100\,ml}=0.2857

Mass of solute in aqueous phase = 0.2857\times 5g=1.428g

Mass\,percentage = \frac{1.428}{5.0}\times 100=28.57

Therefore, Percentage of mass of solute in aqueous phase is 28.57%.

5 0
3 years ago
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