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Salt water as the electrolyte, silver earring as the cathode and aluminium foil as the anode.

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Aluminium foil as a anode, Copper $1 coin as a cathode, and salt water as an electrolyte!

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Aluminum foil as an anode
graphite lead for pencils as cathode for H2O
salt water as an electrolyte solution
iphone charging cable as wire
insulated tape to keep it all together
cups as beakers
potential difference +1.67V

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Electrolyte: Salt water
Anode: Horseshoe (made from aluminium!)
Cathode:  50c coin (made from copper)

Missing: wire

Predicted potential difference (under standard conditions) -1.66-(+0.15)=-1.81V

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- Iron scissors as anode, undergo oxidation, losing electrons.
- Copper from coin, melted as cathode, undergo reduction, gains electrons
- Salt water as electrolyte
- Under SLC, voltage generated should be 0.78V

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Here's my better oxidant

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Aluminum foil: anode (strong reductant)
*I realised solid iron isn't that great of an oxidant so i took a picture of a gold hoop earring as well.
Gold earring: cathode (strong oxidant)
Vinegar: electrolyte
Paper & NaCl solution: salt bridge
Wire hanger: external circuit
Glass cups: "beakers"
Lightbulb :)

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Aluminium can  (stronger reductant)
anode as it is oxidised
(needs to be cut into strips to stick into the lime)

lime: citric acid is the electrolyte

$1 coin copper (stronger oxidant)
cathode as it is reduced
*missing: connecting wire*

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earphone wire - copper wire, good at conducting electricity

photograph - has AgCl in it

fertiliser - electrolyte with KNO3 in it

coin - made of 92% Ni(s)

Galvanic cell with Ni(s) and Ag+(aq)

Spontaneous reaction will occur as Ag+ is a stronger oxidant

Converts chemical energy to electrical energy

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I made a galvanic cell out of a metal screw (I think it’s copper), aluminium foil and tissue soaked in salt (NaCl) solution. The copper screw and aluminium foil act as the two electrodes and the tissue separates them, hence separating the reduction and oxidation reactions. The NaCl(aq) acts as the electrolyte (as NaCl is soluble in water and can ionise).
I drew in where the wires would connect!

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This is a battery with multiple cells.
Each cell is made of $0.20 coin and a layer of aluminium foil and cardboard soaked in lemon juice, the lemon juice acts as electrolyte (citric acid).
The copper in coin acts as cathode and the anode

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pencil lead (which is graphite, right?) as cathode
half eqn: O2(g) +4H+(aq) +4e- --> 2H2O(l)

keys (which let's pretend are silver because I have no idea what they actually are) as anode
half eqn: Ag(s) --> Ag+(aq) + e-

NaCl solution as electrolyte

Some kind of wire let's hope is conductive to connect the electrodes (allow electrons to flow from anode to cathode)

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Electrolytic cell:
Electrolyte is citric acid from lemon, two electrodes which will be stuck in the lemon are a grey lead pencil (graphite) and a gold coin (mostly copper)
A voltmeter will then be connected to the electrodes.

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Aluminium container as an electrode.
Inert pencil graphite electrode.
Nacl water for the electrolyte.

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Anode: Aluminium foil
Electolyte: Table salt dissolved in water
Half Equ: Al(s) --> Al3+(aq) + 3e-

Cathode: Carbon (from my woodless graphite pencil)
Electrolyte: lemon juice containing citric acid
Half Equ: H+(aq) + 2e- --> H2(g)

Wire use to connect circuit and salt bridge (toilet paper lol soaked in household cleaning cream mixed with water solution - that contains Calcium carbonate/other salts but not NaCl)

expected voltage: 1.66V

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Aluminium foil acts as the anode

Coin (92% copper) acts as the cathode

Electrolyte is the citric acid in the lemon

The metal coat hanger can be used as the wire to connect the two electrodes together

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Material:
$1 coin (92% copper) - anode
¥1 coin (100% aluminium) - cathode
Salt water - electrolyte
Wires
The fridge that needs power

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Anode: Aluminium Foil
Cathode: $1 Coin (made out of copper)
Electrolyte: Lemon juice (citric acid)
Some sort of wire to connect them all together
Predicted potential difference (under standard conditions and given this whole thing actually works) would be -1.66-(+0.15)=-1.81V

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Assuming that I have Ag2SO4, Ag, Zn and ZnSO4 at home, and an external circuit made of wire, this cell could be plausible. NaCl in the salt bridge is made from tissue soaked in common table salt dissolved in water. The potential difference is 1.56V, with Ag+(aq) being the oxidant and Zn(s) being the reductant.

The Ag/Ag+ half cell undergoes reduction and contains the cathode.

The Zn/Zn2+ half cell undergoes oxidation and contains the anode.

P.S. Ignore the light source on the top right hand corner pls ty :)

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- Table salt dissolved in the glass of water can be used as the electrolyte
- Pencil (graphite) can be used as an inert electrode
- mint can (aluminium) can be cut into a strip and used as an aluminium electrode
- the strips need to touching the saltwater and extending past the glass’s rim. (At the same time making sure they don’t touch each other)
- then use a voltmeter to measure the voltage ie. E0 value (unfortunately I don’t have one at home)

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Aluminium foil:
- Obviously made of aluminium
- Anode
- Strong reductant - undergoing oxidation

20c coin:
- Made of around 75% copper and 25% nickel
- Cathode
- Copper is stronger oxidant - undergoes reduction
- After copper reactants used up, nickel is then used as it is the next strongest oxidant

Electrolyte:
- Salt water

Alannah :)

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Use a copper bar and aluminium bar(perhaps copper nails and a chunk of al foil that you scratch a bit? Or use a can?) , connect them and use water and bleach(contains NaOH) as the electrolyte. Eventually the voltage will run out but you can replace the parts.

Also, if you wanted a higher voltage, rig several cells up together :)

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- Tin Can (someone needs to drink the beer for me first)
- Lead Pencil (inert graphite electrode)
- Cleaning solution (contains NaOH)
- a multimeter (if I want to check the voltage)
- some very big alligator clips to connect everything up

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...electricity is off, but we still need to power our refrigerators and lights. Show me how you could bring us a battery to help the cause. What chemical concepts are you employing, and what voltage range do you approximate your battery could produce? Is it rechargeable, or a fuel cell that doesn't require recharging?
OR
Can you make us a precious metal to sell on the Doomsday black market? Pull together some materials for an electrolytic cell!