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Grace [21]
4 years ago
13

Zn is less active than mg write the equations decribing what occurs when you mix, zn with o.5 m magnesium chloride, mgcl2 if no

reaction occurs write n.r
Chemistry
1 answer:
Pavel [41]4 years ago
7 0
There is no reaction between the two.

Zn + MgCl₂ → n.r

This is guided by the activity series. In order for a single-replacement reaction to occur, the element can only replace one element in the compound if it is more active. Since Zn is less active than Mg, it is unable to replace Mg. Thus, there is no reaction.
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8 0
2 years ago
Given the two reactions PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), K3 = 1.89×10−10, and AgCl(aq)⇌Ag+(aq)+Cl−(aq), K4 = 1.25×10−4, what is the
Sergio [31]

Answer:

1.2\times 10^{-2}

Explanation:

The given reactions are:

PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq)     K_3 = 1.89\times 10^{-10}

AgCl(aq)⇌Ag+(aq)+Cl−(aq)           K_4 = 1.25\times 10^{-4}

Required reaction is:

PbCl2(aq)+2Ag+(aq)⇌2AgCl(aq)+Pb2+(aq)

K_f = \frac{K_3}{K_4^2}\\=\frac{1.89\times 10^{-10}}{1.25\times 10^{-4}}^2\\=1.2\times 10^{-2}

4 0
4 years ago
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finlep [7]

Answer:

Explanation:

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3 years ago
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