Question

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If any of the following reactions occur spontaneously, write the balanced net lonic equation
If not, write "no reaction",
(a) Pb + Zn² ►Pb² + Zn


(b) Fe + H ► Fe² + H²

(c) Cu + Ag ► Cu² + Ag


(d) Cr + Zn² ► Cr³ + Zn
​

Answer 1

a. 2Pb + Zn^2--> Pb^2 + 2Zn

b. 2Fe + 2H --> Fe^2 + H^2

c. 2Cu + Ag --> Cu + Ag

d. 3Cr + Zn^2 --> Cr^3 + Zn

Answer 2

b) Fe + H ► Fe² + H²

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