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If you observed the following reaction, which conclusions can you make? (Check ALL that apply):
MX _(aq) + Y _(s) --> YX _(aq) + M _(s)

Select one or more:

a. M is more active than Y

b. M is more active than X

c. Y is more active than M

d. X is more active than Y

e. M cations (eg. M+) are in the solution at the beginning of the reaction

f. Y cations (eg. Y+) are in the solution at the end of the reaction

g. X anions (eg. X-) are in the solution the whole time

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In the following reaction, which is the reduction half reaction? (more than one form may be possible; select ALL that apply)

Fe₂O₃ (aq) + 2 Al (s) --> 2 Fe (s) + Al₂O₃ (aq)

Select one or more:

a. Fe₂O₃ + 2 Al --> 2 Fe + Al₂O₃

b. Fe₂O₃ + 6 e- --> 2 Fe + 3 O^2-

c. Fe ³⁺ --> Fe + 3 e-

d. 2 Al + 3 H₂O + 6 e- --> Al₂O₃ + 6 H⁺

e. Al --> Al ³⁺ + 3 e-

f. Fe ³⁺ + 3 e- --> Fe

g. Al ³⁺ + 3 e- --> Al