Looking for trustworthy answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Get quick and reliable solutions to your questions from a community of experienced professionals on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.
Sagot :
Let's analyze each reaction in turn to determine whether it is an oxidation-reduction reaction, characterized by changes in oxidation states of the elements involved.
### Reaction 1:
[tex]\[ ZnS (s) + 2 O_2 (g) \rightarrow ZnSO_4 (s) \][/tex]
- Zinc (Zn):
- In ZnS, zinc has an oxidation state of +2.
- In ZnSO_4, zinc also has an oxidation state of +2.
- Sulfur (S):
- In ZnS, sulfur has an oxidation state of -2.
- In ZnSO_4, sulfur has an oxidation state of +6.
- Oxygen (O):
- In O2 (g), oxygen has an oxidation state of 0.
- In ZnSO_4, oxygen has an oxidation state of -2.
In this reaction:
- Zinc does not change its oxidation state.
- Sulfur changes from -2 to +6 (oxidation).
- Oxygen changes from 0 to -2 (reduction).
Since there are changes in oxidation states, this reaction is indeed an oxidation-reduction (redox) reaction.
### Reaction 2:
[tex]\[ CaO (s) + H_2O (l) \rightarrow Ca(OH)_2 (s) \][/tex]
- Calcium (Ca):
- In CaO, calcium has an oxidation state of +2.
- In Ca(OH)_2, calcium maintains an oxidation state of +2.
- Oxygen (O):
- In CaO, oxygen has an oxidation state of -2.
- In H2O, oxygen has an oxidation state of -2.
- In Ca(OH)_2, oxygen maintains an oxidation state of -2.
- Hydrogen (H):
- In H2O, hydrogen has an oxidation state of +1.
- In Ca(OH)_2, hydrogen maintains an oxidation state of +1.
Since there are no changes in oxidation states, this is not a redox reaction.
### Reaction 3:
[tex]\[ 6 Li_2O (s) + P_4O_{10} (g) \rightarrow 4 Li_3PO_4 (s) \][/tex]
- Lithium (Li):
- In Li_2O, lithium has an oxidation state of +1.
- In Li_3PO_4, lithium still has an oxidation state of +1.
- Phosphorus (P):
- In P4O10, phosphorus has an oxidation state of +5.
- In Li_3PO_4, phosphorus maintains an oxidation state of +5.
- Oxygen (O):
- In Li_2O, oxygen has an oxidation state of -2.
- In P_4O_{10}, oxygen has an oxidation state of -2.
- In Li_3PO_4, oxygen maintains an oxidation state of -2.
Since there are no changes in oxidation states, this is not a redox reaction.
### Reaction 4:
[tex]\[ SO_2 (g) + H_2O (l) \rightarrow H_2SO_3 (aq) \][/tex]
- Sulfur (S):
- In SO_2, sulfur has an oxidation state of +4.
- In H_2SO_3, sulfur still has an oxidation state of +4.
- Oxygen (O):
- In SO_2, oxygen has an oxidation state of -2.
- In H_2O, oxygen has an oxidation state of -2.
- In H_2SO_3, oxygen maintains an oxidation state of -2.
- Hydrogen (H):
- In H_2O, hydrogen has an oxidation state of +1.
- In H_2SO_3, hydrogen does not change its oxidation state of +1.
Since there are no changes in oxidation states, this is not a redox reaction.
Based on the analysis above, only Reaction 1:
[tex]\[ ZnS (s) + 2 O_2 (g) \rightarrow ZnSO_4 (s) \][/tex]
is an oxidation-reduction (redox) reaction.
### Reaction 1:
[tex]\[ ZnS (s) + 2 O_2 (g) \rightarrow ZnSO_4 (s) \][/tex]
- Zinc (Zn):
- In ZnS, zinc has an oxidation state of +2.
- In ZnSO_4, zinc also has an oxidation state of +2.
- Sulfur (S):
- In ZnS, sulfur has an oxidation state of -2.
- In ZnSO_4, sulfur has an oxidation state of +6.
- Oxygen (O):
- In O2 (g), oxygen has an oxidation state of 0.
- In ZnSO_4, oxygen has an oxidation state of -2.
In this reaction:
- Zinc does not change its oxidation state.
- Sulfur changes from -2 to +6 (oxidation).
- Oxygen changes from 0 to -2 (reduction).
Since there are changes in oxidation states, this reaction is indeed an oxidation-reduction (redox) reaction.
### Reaction 2:
[tex]\[ CaO (s) + H_2O (l) \rightarrow Ca(OH)_2 (s) \][/tex]
- Calcium (Ca):
- In CaO, calcium has an oxidation state of +2.
- In Ca(OH)_2, calcium maintains an oxidation state of +2.
- Oxygen (O):
- In CaO, oxygen has an oxidation state of -2.
- In H2O, oxygen has an oxidation state of -2.
- In Ca(OH)_2, oxygen maintains an oxidation state of -2.
- Hydrogen (H):
- In H2O, hydrogen has an oxidation state of +1.
- In Ca(OH)_2, hydrogen maintains an oxidation state of +1.
Since there are no changes in oxidation states, this is not a redox reaction.
### Reaction 3:
[tex]\[ 6 Li_2O (s) + P_4O_{10} (g) \rightarrow 4 Li_3PO_4 (s) \][/tex]
- Lithium (Li):
- In Li_2O, lithium has an oxidation state of +1.
- In Li_3PO_4, lithium still has an oxidation state of +1.
- Phosphorus (P):
- In P4O10, phosphorus has an oxidation state of +5.
- In Li_3PO_4, phosphorus maintains an oxidation state of +5.
- Oxygen (O):
- In Li_2O, oxygen has an oxidation state of -2.
- In P_4O_{10}, oxygen has an oxidation state of -2.
- In Li_3PO_4, oxygen maintains an oxidation state of -2.
Since there are no changes in oxidation states, this is not a redox reaction.
### Reaction 4:
[tex]\[ SO_2 (g) + H_2O (l) \rightarrow H_2SO_3 (aq) \][/tex]
- Sulfur (S):
- In SO_2, sulfur has an oxidation state of +4.
- In H_2SO_3, sulfur still has an oxidation state of +4.
- Oxygen (O):
- In SO_2, oxygen has an oxidation state of -2.
- In H_2O, oxygen has an oxidation state of -2.
- In H_2SO_3, oxygen maintains an oxidation state of -2.
- Hydrogen (H):
- In H_2O, hydrogen has an oxidation state of +1.
- In H_2SO_3, hydrogen does not change its oxidation state of +1.
Since there are no changes in oxidation states, this is not a redox reaction.
Based on the analysis above, only Reaction 1:
[tex]\[ ZnS (s) + 2 O_2 (g) \rightarrow ZnSO_4 (s) \][/tex]
is an oxidation-reduction (redox) reaction.
Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. We're here to help at Westonci.ca. Keep visiting for the best answers to your questions.
