Answer:cathode
Explanation:It is also known as the galvanic cell or electrochemical cell. In the voltaic cell, the oxidation occurs at an anode which is a negative electrode and the reduction occurs at the cathode which is a positive electrode.
The anode is the electrode where the oxidation occurs.
Cathode is the electrode where the reducction occurs.
Equations:
Mn(2+) + 2e- ---> Mn(s) Eo = - 1.18 V
2Fe(3+) + 2e- ----> 2 Fe(2+) 2Eo = + 1.54 V
The electrons flow from the electrode with the lower Eo to the electrode with the higher Eo yielding to a positive voltage.
Eo = 1.54 V - (- 1.18) = 1.54 + 1.18 = 2.72
Answer: 2.72 V
<span>When the gases dihydrogen sulfide and oxygen react, they form the gases sulfur dioxide and water vapor. so the balanced equation is
</span>2H2S(g) + 3O2(g) → 2SO2(g) + 2H2O(l)
hope it helps
Explanation:
A mixture which shows presence of uniform composition of solute particles into the solvent is known as a homogeneous mixture.
- Distilled water is a clear solution in which there is uniform composition of solute particles into the solution.
- Gasoline is mixture of different compounds which are evenly distributed. Therefore, it is also a homogeneous mixture.
- Wine is also a clear solution in which particles are evenly distributed. Hence, it is a homogeneous mixture.
On the other hand, a mixture which shows non-uniform composition of solute particles into the solvent is known as a heterogeneous mixture.
- Beach sand is a mixture of different particles present in varying composition. Hence, it is a heterogeneous mixture.
- Also, in air there are different gases present in different composition. Mover over, there is presence of fog and smoke into the air. Hence, it is a heterogeneous mixture.
A. the number of protons in the atoms
