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Natali [406]
4 years ago
8

Which of the following pairs of aqueous solutions will form a precipitate when mixed?

Chemistry
1 answer:
olya-2409 [2.1K]4 years ago
6 0

Answer:

The correct answer is A) Pb(C₂H₃O₂)₂ + Li₂SO₄

Explanation:

  • All salts of Na, K and ammonium are soluble.
  • All nitrates are soluble.
  • All chlorides are soluble, with the exception of AgCl, Hg₂Cl₂, PbCl₂ and CuCl.
  • All sulfates are soluble, with the exception of CaSO₄, SrSO₄, BaSO₄, PbSO₄, HgSO₄, Hg₂SO₄ and Ag₂SO₄.
  • All hydroxides are poorly soluble, with the exception of alkaline hydroxides, Sr(OH)₂, Ba(OH)₂ and NH4(OH)
  • All carbonates are poorly soluble, with the exception of alkaline carbonates and ammonium carbonate.
  • All sulfides are poorly soluble, with the exception of alkaline sulfides, alkaline earth sulfides, and ammonium sulfide.

The reaction A is:

Pb(C₂H₃O₂)₂ + Li₂SO₄ ⇒PbSO₄ + 2 LiC₂H₃O₂

Lead sulfate is a slightly soluble solid, therefore it precipitates.

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Emulsion

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5 0
3 years ago
Based on the reaction below:
Sidana [21]

N₂ + 3H₂ ⇄ 2NH₃ + heat

In the given equilibrium, we notice that the heat is on the right. which means that if the heat requirements don't meet, the reactants on the right will no longer react due to the lack of heat

but because the reactants on the left don't have such weaknesses, they will keep reacting hence producing more and more ammonia until a new equilibrium is reached

where there will be more ammonia and less nitrogen and hydrogen as compared to the equilibrium we had initially

5 0
3 years ago
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Reactant P contains 50 J of energy, and reactant Q contains 35.3 J of energy. The reactants combine to form product PQ, which co
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85.3 i hope its add  it all than minis
5 0
4 years ago
A major component of gasoline is octane when octane is burned in air it chemically reacts with oxygen to produce carbon dioxide
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7 0
3 years ago
How many grams of hydrogen must react if the reaction needs to produce 31.75 grams of nh3
leva [86]
X= (3*2)(31.75)/(2*17)3*31.75/17
=5.603g H2

Answer: 5.603g H2

It’s all quite simple actually considering the fact the M(NH3) = 14 + 1*3 = 17g/mol
And M(H2) = 2*1 2g/mol

So 3H2 + N2 >> 2NH3

Givin that Xg is 31.75g

-HOPE THAT HELPED IN A WAY!!☺️
7 0
3 years ago
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