Answer:
Balanced net ionic equation;
2MnO₄⁻ + 16H⁺ + 5C₂O₄²⁻ → 2Mn²⁺ + 8H₂O + 10 CO₂
Explanation:
- This is an example of a redox titration where acidified potassium permanganate (KMnO₄) is titrated against oxalic acid (H₂C₂O₄).
- A redox reaction is a type of reaction that involves both reduction and oxidation.
- One reactant of the reaction gains electrons(reduction) while another loses electrons(oxidation).
- During the redox reaction, H⁺/KMnO₄ undergoes reduction while the oxalic acid undergoes oxidation.
- Therefore, KMnO₄ is the oxidizing agent while H₂C₂O₄ is the reducing agent.
- The net ionic reaction will be;
2MnO₄⁻ + 16H⁺ + 5C₂O₄²⁻ → 2Mn²⁺ + 8H₂O + 10 CO₂
- From the reaction, MnO₄⁻ is reduced to 2Mn²⁺ while C₂O₄²⁻ is oxidized to CO₂.
- Therefore, two moles of KMnO₄ will react with 5 moles of oxalic acid.
The answer is going to be 140 cm because if you do 1.4 times 100 the answer is going to be 140. It will always work!!!
Answer:
Rf = 0.26
Explanation:
The Rf value is calculated by dividing the distance traveled by a compound, by the distance traveled by the solvent front. In other words, the length of the TLC plate is not relevant in calculating a Rf value.
- Distance traveled by compound C = 18 mm
- Distance traveled by the solvent front = 70 mm
<h3><u>Answer;</u></h3>
C. increasing the surface area of Fe2O3
<h3><u>Explanation;</u></h3>
- The rate of reaction refers to the speed at which products are formed from reactants.
- The rate of any chemical reaction depends on a number of factors which include, surface area, temperature, concentration of reactants among others.
- <em><u>When solids and liquids react, increasing the surface area of the solid will increase the rate of reaction. Thus, decrease in the size of particles causes an increase in the total surface area of the solid and therefore increasing the rate of reaction.</u></em>
Degenerate Orbitals
~ Meaning ~
Electron orbitals that have the same energy levels are called degenerate orbitals. When assigning electrons to orbitals in determining electron configurations, the Aufbau principle states that lower energy orbitals are filled before higher energy orbitals.
