
Electrolysis in electroplating
Presentation
•
Science
•
9th Grade
•
Practice Problem
•
Medium
Yohanes Teacher
Used 22+ times
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5 Slides • 14 Questions
1
Electrolysis in electroplating
By Yohanes Teacher
2
Multiple Choice
Which one of these is the oxidation reaction?
Mg=> Mg2++2e
O + 2e = O2−
3
Multiple Choice
Which one of these is the oxidation reaction
Cl + e => Cl−
Li => Li+ + e
4
Fill in the Blanks
Type answer...
5
Multiple Choice
Which one of these is the reduction reaction
K => K−+e
P + 3e => P3−
6
Multiple Choice
Which one of these is the reduction reaction
Be => Be2++2e
F+e =>F−
7
Fill in the Blanks
Type answer...
8
Electrolysis and Electroplating
Aim:
To answer the following questions :
Describe the chemical process of electrolysis
Identify the component in electrolysis
How electrolysis can be beneficial to solve corrosion
Some text here about the topic of discussion
9
Create a short article/presentationor infographic that describe the purpose, materials, procedure, and implication of Chromium electroplating.
Activity 2
Work in a pair and do research about electrolysis.
Find the worksheet in the GD as your guidance
Activity 1
Activities
Some text here about the topic of discussion
10
Multiple Choice
Which one is correct defintion of electrolysis
breaking down of an electrolyte compound using electrical current
making a compound using electrical current
11
Multiple Choice
What is the name of the positive electrode?
cathode
anode
12
Multiple Choice
What is the name of the negative electrode?
Anode
Cathode
13
Multiple Choice
Electroplating is a process whereby a metal surface is coated with a non-metal.
True
False
14
Multiple Choice
The electrode that contains the item to be electroplated
Cathode
Anode
15
Electrons flows from the negative terminal of the battery toward the cathode.
It will resulted an electric force to attract the positive ion of the solution.
The positive ion is always metals, as a result, the cathode will coated with the metal that compose the solution
16
Multiple Choice
Therefore, based on the ilustration in the previous slide, the solution or the electrolyte must contain
the metal to be plated
any type of metal
the plating metal
no metal ions
17
Multiple Choice
Which is not a reason for metal plating?
decorative purposes
to make the metal stronger
prevent rust and corrosion
18
Electroplating never meant to reinforce the strength of the material of metal
19
Multiple Choice
If you were plating with copper, which electrolyte could be used
Nickel sulfate
Magnesium Chloric acid
Copper sulfate
Sulfuric acid
Electrolysis in electroplating
By Yohanes Teacher
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