Word equation for Cu(s)+O2(g)=CuO(s)
2 answers:
Answer:
Copper solid plus oxygen gas giving solid cupric oxide
Explanation:
The given reaction is:
The balanced equation is:
The formula name of the reactants and products are:
Cu (s) = copper in the solid phase
O2 (g) = oxygen in the gas phase
CuO (s) = copper (II) oxide or cupric oxide
The word equation would be:
Copper solid plus oxygen gas giving solid cupric oxide
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Answer : The correct option is, (A) silver ion gains electrons more easily and is a stronger oxidizing agent than a chromium(III) ion.
Explanation :
The given half reaction are :
1st half reaction :
The reduction potential of this reaction = +0.80 V
2nd half reaction :
The reduction potential of this reaction = -0.74 V
From the reduction potentials, we conclude that the reaction which have positive reduction potential, they will gain electrons more easily and reduced itself and act as a stronger oxidizing agent.
Or we can say that the reaction which have negative reduction potential, they will lose electrons more easily and oxidized itself and act as a stronger reducing agent.
The reduction potential of 1st half reaction is positive and 2nd half reaction is negative.
Therefore, the silver ion gains electrons more easily and is a stronger oxidizing agent than a chromium(III) ion.