In the reaction Ca → Ca2+ + 2e-, Ca is __________.
A:reduced because it gains electrons
B:reduced because it loses electrons
C:oxidized because it gains electrons
D:oxidized because it loses electrons
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To determine whether calcium (Ca) is being reduced or oxidized in the given reaction Ca → Ca2+ + 2e-, we need to understand the concepts of reduction and oxidation in chemical reactions.
Oxidation is a process in which an atom, ion, or molecule loses electrons, resulting in an increase in its oxidation state. Reduction, on the other hand, involves the gain of electrons, causing a decrease in the oxidation state.
In the given reaction, Ca is being converted into Ca2+ by losing two electrons (2e-). When an atom or ion loses electrons, it undergoes oxidation. Therefore, the correct answer is:
D: oxidized because it loses electrons
Remember Leo the lion goes Grr.
Leo. L for loss. e for electrons, o for oxidation.
or, OIL RIG
Oxidation
Is
Loss
Reduction
Is
Gain