Metal rings can be coated with a layer of copper using electricity.Plan an experiment to electroplate a small metal ring with copper using ELECTROLYSIS.
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First of all, what is electrolysis?
Electrolysis is the process of breaking down ionic substances using direct current.
Important points about electrolysis
→ Ionic substances contain particles called ions.
→ Electricity is the flow of electrons or ions. For electrolysis to work, the compound must contain ions. The ions must be free to move for electrolysis to occur and it can happen by melting or dissolving an ionic substance in water.
→ Positively charged ions move to the negative electrode. They receive electrons and are reduced. The positive ions move towards the negative electrode because they want to cancel each other out.
→ Negatively charged ions move to the positive electrode. They lose electrons and are oxidised. The substance that is broken down is called the electrolyte (an electrolyte is just a liquid or solution that can conduct electricity) . The negative ions move towards the positive electrode because they want to cancel each other out.
Cathode = Negative electrode
Anode = Positive electrode
Metal ions form at the cathode and non-metal ions form at the anode
How I remember if an element is oxidised or reduced is by remembering OIL RIG
OIL = Oxidation is Loss (of electrons)
RIG = Reduction is Gain (of electrons)
The answer to your question
1) The first step would be to clean the metal ring and sand it down because when the metal atoms from the electrolyte are deposited onto the ring, they will form a weak bond and they may simply 'fall' off. Also this could affect conductivity and the whole experiment. The more things you do accurately now, the more accurate your result will be.
2) You want to put the solution you are given in to the tank your going to be using.
3) This is basically the main part, you want to set up the circuit, I have attached a diagram at the bottom to show you the circuit. The copper rod will be the anode and the metal ring will be a cathode (ignore the elements).
4) Now turn on the circuit and you will start to see the solution spilt with the the solution now being split some going to the anode and some going the cathode.
5) Then a thin layer should form on the electrode.
Hope this helps :)
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Answer:
ammonium (If this helped, pls make me brainiest! Have a good day and i hope this helped! :D)
Explanation:
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Answer:
Mixture is a substance which has two or more components which do not combine chemically and do not have any fixed ratio in which they are present. Example: Air
Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water
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Electrical Energy ____________________ Heat Energy
Light Energy
Mechanical Energy
Nuclear Energy
Chemical Energy
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Answer: Mechanical Energy
Explanation:
According of law of conservation of energy, energy can neither be created nor be destroyed. It can only transformed from one form to another.
When electric sharpener works by using electrical energy, it is being used to drive the blades of the sharpener and is being converted to mechanical energy which is then converted to heat energy and the sharpener gets warm.
Electrical energy is the energy possessed by virtue of motion of electrons.
Mechanical energy is the energy possessed by a body by virtue of its position and motion.
Heat energy is the transfer of thermal energy from hotter body to colder body.
first the pencil sharpener gets electricity from the plug and wires
that then makes the pencil sharpener move it's motor and well, sharpen pencils
all the kinetic energy from the motor moving releases heat, making the sharpener warm