# Problem: Which of the following is an acid-base reaction?      A) 2 HClO4(aq) + Ca(OH)2(aq) → 2 H2O(l) + Ca(ClO4)2(aq)B) Fe(s) + 2 AgNO3(aq) → 2 Ag(s) + Fe(NO3)2(aq)C) MgSO4(aq) + Ba(NO3)2(aq) → Mg(NO3)2(aq) + BaSO4(s)D) C(s) + O2(g) → CO2(g)E) None of the above are acid base reactions.

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###### Problem Details

Which of the following is an acid-base reaction?

A) 2 HClO4(aq) + Ca(OH)2(aq) → 2 H2O(l) + Ca(ClO4)2(aq)

B) Fe(s) + 2 AgNO3(aq) → 2 Ag(s) + Fe(NO3)2(aq)

C) MgSO4(aq) + Ba(NO3)2(aq) → Mg(NO3)2(aq) + BaSO4(s)

D) C(s) + O2(g) → CO2(g)

E) None of the above are acid base reactions.

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Based on our data, we think this problem is relevant for Professor Giles' class at VCU.