Use the activity series of metals (Table 7.5) to predict the outcome of each of the following reactions. If no reaction occurs write NAR.?

2020-10-28 10:47 am
Use the activity series of metals (Table 7.5) to predict the outcome of each of the following reactions. If no reaction occurs write NAR. 
a) Co (s) + H2O (l) → 

b) Cu (s) + HCl (aq) →

c) Al (s) + Cu2+ (aq) →

d) Ca (s) + HNO3 →

e) Ba (s) + Zn2+ (aq) →

I don't really understand how to use the tables. 

回答 (1)

2020-10-28 11:03 am
✔ 最佳答案
Use of the reactivity series table of metals:
• The very reactive metals can react with water to form H₂ gas.
• Metals above H can react with acids to form H₂ gas.
• A more reactive metal can displace a less reactive metal from the solution of its salt.

a) NAR

b) NAR

c) 2Al(s) + Cu²⁺(aq) → 2Al³⁺(aq) + 3Cu(s)

d) Ca(s) + 2HNO₃(aq) → Ca(NO₃)₂(aq) + H₂(g)
    (provided the HNO₃ is very dilute.)

e) Ba(s) + Zn²⁺(aq) → Ba²⁺(aq) + Zn(s)
    and: Ba(s) + 2H₂O(ℓ) → Ba(OH)₂(aq) + H₂(g)


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