Question
Is the following a redox reaction? Justify your answer.
CaCO3 CO2 +CaO
CaCO3 CO2 +CaO
Answers
GPT 3.5
Yes, the given reaction is a redox reaction. This can be justified by identifying the changes in oxidation numbers of the elements involved in the reaction.
In CaCO3, the oxidation state of Ca is +2, the oxidation state of C in CO3 is +4, and the oxidation state of each O is -2. In CO2, the oxidation state of C is +4, and the oxidation state of each O is -2. In CaO, the oxidation state of Ca is +2, and the oxidation state of each O is -2.
So, in the reaction: CaCO3 -> CO2 + CaO, the oxidation state of Ca changes from +2 to +2, but the oxidation state of C changes from +4 to +4 and the oxidation state of O changes from -2 to -2. Since there is a change in oxidation state for C, it can be concluded that this is a redox reaction.
In CaCO3, the oxidation state of Ca is +2, the oxidation state of C in CO3 is +4, and the oxidation state of each O is -2. In CO2, the oxidation state of C is +4, and the oxidation state of each O is -2. In CaO, the oxidation state of Ca is +2, and the oxidation state of each O is -2.
So, in the reaction: CaCO3 -> CO2 + CaO, the oxidation state of Ca changes from +2 to +2, but the oxidation state of C changes from +4 to +4 and the oxidation state of O changes from -2 to -2. Since there is a change in oxidation state for C, it can be concluded that this is a redox reaction.