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wel
3 years ago
7

When a sample of ca(s) loses 1 mole of electrons in a reaction with a sample of o2(g) the oxygen?

Chemistry
2 answers:
Stolb23 [73]3 years ago
6 0
The reaction involved in present case is:

Net Reaction: Ca   +    1/2 O2    →         CaO. ..................(1)

In terms of oxidation and reduction, the reaction can be shown at

Oxidation: Ca     →       Ca2+      +       2e- .................(2)
Reduction: 1/2O2    +   2e-      →      O2-...................(3)

From, reaction 1 it can be seen that 1 mol of Ca reacts with 1/2 mol of O2 to form 1 mol of CaO.

From, reaction 2 it can be seen that 1 mol of Ca, generates 2 mol of e-.

Thus, when 1/2 mol of Ca is used in reaction, it will lose 1 mol of electrons.
Mandarinka [93]3 years ago
3 0

Gains 1 mole of electrons

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