Balanced equation for Co+O2=Co2O3

The balanced equation for Co+O₂=Co₂O₃ is  Co+2O₂=Co₂O₃

In the equation balancing of  Co+O₂=Co₂O₃ ,some points needs to be taken

which involves ensuring that the number of elements on the left hand side is

the same as that on the right hand side.

In this scenario, the number of carbon is the same on both sides but the

difference is in the number of moles of oxygen in which 2 is added to the left

hand side to make it balanced.

Co+2O₂=Co₂O₃

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4 Co(s) + 3 O2(g) = 2 Co2O3(s)

Explanation:

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.