When iodine is placed in potato juice it turns dark purple to black. It's the starch in potatoes that reacts with the iodine.
Yes, the potato clock works due to the electrolytes in the potato acting as a conductor for the flow of electricity. When two different metals are inserted into the potato, a chemical reaction occurs that generates a small electrical current to power the clock. The potato itself does not produce electricity, but rather serves as an electrolyte medium for the reaction to take place.
When you place a covered container of iodine in a warm place, the iodine will sublimate, meaning it will change from a solid to a gas without passing through the liquid phase. This is due to the low melting point of iodine, which is below room temperature.
use iodine- in the presents of starch it changes color, best in a testube, but you can inject it into a potato and get something simular. try putting iodine in the plants water or somering simular.
mix orange juice and orange juice. the best place to do this is in the place Kent is in, 'Colombian Roastmasters'.
place a leave in a glass of iodine (brown colour), if it turns the iodine green its means chlorophyll is present. (iodine will evaporate the chlorophyll out of the plant)
The reaction is a redox reaction where chlorine is reduced to chloride ions and iodide ions are oxidized to elemental iodine. Overall, it is a displacement reaction where chlorine displaces iodine from sodium iodide to form sodium chloride and elemental iodine.
Placing iodine covered in a warm place could cause sublimation to a cool spot on the container - if the temperature is even on the container walls, if the temperature is warm enough the violet colour of gaseous iodine may be visible.
Beacause when you put the slice of potato in water osmosis takes place since concentration of water is lower then the concentration of the potato and water moves from ow concentration to high concentration so the water will move into the potato and the potato will become ridgid, But if you put salty water the salty water has a higher concentration then the potato so water will move out of the potato and the potato becomes soft.
Placing iodine covered in a warm place could cause sublimation to a cool spot on the container - if the temperature is even on the container walls, if the temperature is warm enough the violet colour of gaseous iodine may be visible.
no the potato comes from south America (Peru)
in Greece
cauth