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zmey [24]
3 years ago
7

When NH3(aq) is added to Cu2 (aq), a precipitate initially forms. Its formula is:

Chemistry
1 answer:
Rasek [7]3 years ago
3 0
It’s B the cu looses its 2 and passes it to the NH3 that needs a bracket to separate them. The NH3 doesn’t loose its 3 because it’s already a compound!
Hope this helps!
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35. In the collision theory, a collision that leads to the formation of products is called an
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It's Effective Collision.

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Consider the reaction.
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Explanation: First is convert the moles of Zn to the moles of ZnSO4 by having their mole ratio which is 2:2 based from the balanced equation. Next is convert the moles of ZnSO4 to mass using its molar mass.

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0.311 moles ZnSO4 x 161 g ZnSO4 / 1 mole ZnSO4

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3 years ago
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b. Conducts electricity when dissolved in water

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3 years ago
Definition of volume
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3 years ago
Calculate the ph of a 0.17 m solution of c6h5nh3no3 (kb for c6h5nh2 = 3.8 x 10-10). record your ph value to 2 decimal places.
MatroZZZ [7]
<span>Mass of the solution = 0.17m
 Kb for C6H5NH2 = 3.8 x 10^-10
 We know Ka for C6H5NH2 = 1.78x10^-11
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 K^2 = 3 x 10^-12 => K = 1.73 x 10^-6.
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6 0
3 years ago
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