What is oxidation?
Loss of electrons
Gain of oxygen
(Loss of hydrogen)
Key Terms
What is oxidation?
Loss of electrons
Gain of oxygen
(Loss of hydrogen)
What is reduction?
Gain of electrons
Loss of oxygen
(Gain of hydrogen)
What do oxidation states tell you?
Charge on an ion or element or atom
(Tells you total number of electrons element/compou...
Related Flashcard Decks
Study Tips
- Press F to enter focus mode for distraction-free studying
- Review cards regularly to improve retention
- Try to recall the answer before flipping the card
- Share this deck with friends to study together
| Term | Definition |
|---|---|
What is oxidation? |
|
What is reduction? |
|
What is does an oxidising agent do? | Accepts electrons and gets reduced |
What is does a reducing agent do? | Donates electrons and gets oxidised |
What is a redox reaction? | When reduction and oxidation happen simultaneously |
What do oxidation states tell you? | Charge on an ion or element or atom (Tells you total number of electrons element/compound has donated or accepted) |
____ ______ show Oxidation States | Roman numerals |
What is the oxidation state for uncombined elements (e.g. He)? | 0 |
What is the oxidation state for elements bonded to identical atoms (e.g. O2, H2)? | 0 |
What is the oxidation state for a simple monatomic ion (Na+)? | Same as its charge (e.g +1) |
What is the overall oxidation state for compound ions? | The ion charge |
What is the sum of oxidation states for a neutral compound? | 0 |
What is the oxidation state for oxygen? & list the expections |
|
What is the oxidation state for hydrogen? & list the expections |
|
State the oxidation state of O in H2O | -2 |
State the oxidation state of O in H2O2 | -1 |
State the oxidation state of H in HF | +1 |
State the oxidation state of H in NaH | -1 |
What is the oxidation state for fluorine? | -1 |
What is the oxidation state for aluminium? | +3 |
What is the oxidation state for carbon? | ±4 |
Transition metals have a _____ ____ up to _ | postive charge up to 7 |
State the oxidation state of Cl in Cl2O7 | +7 |
State the oxidation state of Mn and O in MnO42- | Mn = +6 & O = -2 |
Write the equation for an oxidation reaction | Reductant → product + e- |
Write the equation for an reduction reaction | Oxidant + e- → product |
In oxidation, the oxidation number _____ | increases (electrons lost) |
In reduction, the oxidation number _____ | decreases (electrons gained) |
Write the half equation for VO2+ → VO2+ | VO2+ + H2O → VO2+ + e- + 2 H+ |
Write the half equation for BrO3- → Br2 | 2 BrO3- + 10 e- + 12 H+ → Br2 + 6 H2O |
Combine these half equations | MnO-4 + 8 H+ + 5 e- → Mn2+ + 4 H2O |
2Cl- → Cl2 + 2 e- | 2 MnO-4 + 16 H+ + 10 Cl- → 2 Mn2+ + 8 H2O + 5 Cl2 |
Combine these half equations
H2O2 → 2 H+ + O2 + 2 e-
MnO4- + 8 H+ + 5 e- → Mn2+ + 4 H2O | 5 H2O2 + 2 MnO4- + 6 H+ → 2 Mn2+ + 8 H2O + 5 O2 |