This is a lab which deals with oxidation-reduction. We did a set of experiments in the lab. This is our procedure and observations:
a) Dissolve a small amount of magnesium (II) chloride in half a beaker of water. (There is no redox process yet). Now add a few mL of NaOH. First make observations before the solution is stirred, then stir only briefly. Watch for change particularly on the liquid surface. (hint: the first fluffy precipitate observed is not a result of redox, rather it is a result of precipitation (solubility of hydroxides))
observation: It turns yellow, and a solid type is formed and settles on the bottom. Once stirred, it got a bit darker. Solid is formed and is more noticeable. Black precipitate forms in the top of the solution.
b) Add a small amount of MnO2 to 6M HCl.
Observation: When 6M HCl was added to MnO2, it just turned into a dark solution and it looks like MnO2 is not dissolved.
Please help come up with a balanced oxidationreduction equation for both a and b.
Please see the attached file for the complete solution.
a) Dissolve a small amount of magnesium (II) chloride in half a beaker of water. (There is no redox process yet). Now add a few mL of NaOH. First make observations before the solution is stirred, then stir only briefly. Watch for change particularly on the liquid surface. (hint: the first fluffy precipitate observed is not a result of redox, ...
Solution Summary
This solution explains how to propose a redox reaction based on experimental data of:
1) Reaction of magnesium chloride and sodium hydroxide.
2) Reaction of manganese (IV) oxide and hydrochloric acid.
Balance the redox reaction:
[Cr2O7]-2 + H2O2 ---> Cr3 + O2
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1. The following is best described by which type of reaction?
CaCO3 --> CaO + CO2
A. decompostion
B. acid-base neutralization
C. single displacement
D. redox
E. double-displacement (metathetical)
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2Ca + O2 --> 2CaO
a. decomposition
b. acid-base neutraliz
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Cl2+OH^- <> Cl^-+ClO3^-+H2O
SO4^2-+I^-+H^+ <> S^2-+I2+H2O
I need help understanding how to solve redox equations. If you could explain this to me in simple terms I would really appreciate it. i have a sample problem and can't even get past it. The problem is:
K2CrO4 + Mg + HCl to CrCl3 + KCl + MgCl2 + h2O
I need to know how to make a balanced equation out of this. Thank you very
1.) Give the oxidation number of each element in the following:
KIF4
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3NO3(g)+H20(l)-----2HNO3(aq)+NO(g)
3.) Write the balanced net ionic equation for the following reaction. Tell what subst
