Question

Which of these redox reactions is spontaneous as written?

Answer 1

A) \[Ag+Cu ^{2+}\rightarrow Ag ^{+}+Cu\]
B) \[AI+H^+\rightarrow AI ^{3+}+H _{2}\]
C) \[H _{2}+AI ^{3+}\rightarrow H ^{+}+AI\]
D) \[Na+K ^{+}\rightarrow Na ^{+}+K\]

Answer 2

its not D

Answer 3

hope, this will help you out....



http://www.mikeblaber.org/oldwine/chm1046/notes/Electro/Spontan/Spontan.htm

Answer 4

thanks but it confused me a little /.\

Answer 5

One way of predicting the spontaneity of reactions is to check the relative positions of the two elements in the activity series. Which element has a higher desire to loose electrons.

Answer 6

B).

Answer 7

Aluminium is above Hydrogen in the Reactivity Series. Hence aluminium will more readily lose electrons to reduce the hydrogen ion to hydrogen gas.