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liubo4ka [24]
3 years ago
15

Which is the solubility product expression for pbcl2(s)

Chemistry
1 answer:
Sever21 [200]3 years ago
4 0
The answer is [Pb^2+][Cl-]^2
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aqueous solutions of barium chloride and potassium carbonate combine to produce a precipitate. what are the spectator ions?​
nalin [4]

Answer:BaCl (aq)+ K2CO3 (aq)——> Ba2CO3 (aq) + KCl (aq)

Explanation:

The equation is already balanced and it is a double replacement reaction.

8 0
3 years ago
Why should you pay attention to the physical states of reactants and products when writing elquilibrium constant expressions?
babunello [35]
Answer is: because pure liquids (<span>shown in </span>chemical reactions<span> by appending (</span>l)<span> to the </span>chemical formula) and solids (<span>shown in </span>chemical equations by appending (s)<span> to the </span>chemical formula) not go in to he equilibrium constant expression, only gas state (shown in chemical reactions by appending (g) to the chemical formula) reactants and products go in to he equilibrium constant expression.
For example, equilibrium constant expression Kp for reaction:
A(s) + 2B(s) ⇄ 4C(g) + D(g).<span>
will be: Kp = [C]</span>⁴<span>·[D].
But for reaction </span>A(g) + 2B(g) ⇄ 4C(g) + D(g), will be:<span>
Kp = [C]</span>⁴<span>·[D] / [A]·[B]².</span>
3 0
4 years ago
Which of the following is an electrolyte?<br> Sugar<br> Nacl<br> Br2<br> Chicken soup
tankabanditka [31]
Nacl is an electrolyte
4 0
3 years ago
Which choice best describes how the Grand Canyon formed?
Mkey [24]
C - Rivers flowing over a long period of time...
5 0
3 years ago
Read 2 more answers
Which is the basis of thin-layer chromatography?
solmaris [256]

Answer:

B.) The drug gets carried through a stationary phase by a mobile phase and the retention time identifies the drug.

Explanation:

Chromatography is used in purifying complex mixtures of organic compounds. It uses the adsorption tendencies of compounds to seperate and identify them.

Chromatography is made up of two phases in contact, the stationary phase or non-mobile phase and the mobile phase. The movement of the mobile phase over the stationary phase causes the separation of a mixture into its constituents.

The stationary phase is made up of silica-gel or alumina in a solvent (an adsorbent) and the mobile phase or carrier is the organic solvent which is the drug.

8 0
4 years ago
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