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AnnyKZ [126]
3 years ago
13

Which is a molecule? A. Ne B. NaCL C. Trail Mix D. graphene

Chemistry
1 answer:
elixir [45]3 years ago
5 0
B) NaCl is a molecule.
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Coal and Diamond are two different form of carbon. which is denser?​
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Identify the correct name for each compound.<br> NaOH:<br> CaSO4<br> NHACN:<br> Al2(SO4)3
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5 0
3 years ago
The maximum amount of nickel(II) cyanide that will dissolve in a 0.220 M nickel(II) nitrate solution is...?
sweet [91]

Answer : The maximum amount of nickel(II) cyanide is 5.84\times 10^{-12}M

Explanation :

The solubility equilibrium reaction will be:

                       Ni(CN)_2\rightleftharpoons Ni^{2+}+2CN^-

Initial conc.                        0.220       0

At eqm.                             (0.220+s)   2s

The expression for solubility constant for this reaction will be,

K_{sp}=[Ni^{2+}][CN^-]^2

Now put all the given values in this expression, we get:

3.0\times 10^{-23}=(0.220+s)\times (2s)^2

s=5.84\times 10^{-12}M

Therefore, the maximum amount of nickel(II) cyanide is 5.84\times 10^{-12}M

7 0
3 years ago
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