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it turns brown because of a reaction to the water, with the particles
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∙ 13y ago
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What is mixed with cocaine to turn it brown?
Heroin.
Why do iodine and cornstarch turn purple when mixed together?
The ion I(3-) penetrate the molecule of amylose; the complex formed is blue.
What turns blue black when stained with iodine?
Starches turn blue-black when stained with iodine (which usually stains things a reddish-brown or amber color).Iodine turns blue black when starch is present
When iodine solution is mixed with an unknown sample of food the mixture turn blue black this color change indicates the presence of?
An enzyme.
Why isn't starch present when colour is light brown?
The Iodine test uses Iodine solution, which is usually a brown colour. It is used to test for the presence of Starch. Iodine solution, iodine dissolved in an aqueous solution of potassium iodide, reacts with starch producing a blue black color. If the sample being tested doesn't turn blue-black, then starch isn't present.
Why does a sugar solution turn brown when Iodine is added?
Because Iodine is a brown element.
Why does iodine turn blue when mixed with tap water?
It chemically reacts to the tap water, so the green in iodine, reacts violently and causes a mixture according to make it blue.
Why does powdered sugar turn black in iodine?
it does not turn blue when mixed with iodine. I don't think there is a colour change.
Does sugar turn blue when mixed with iodine?
No it turns purple.
What happens when iodine is added to carrot?
The colour of the iodine will turn from yellowish brown to dark blue
Why does sea salt turn brown?
Iodine is used to find starch. If no starch is present, a rusty brown color will appear. If starch is present like in bread and potato, the iodine when put on will turn blackish blue. That is known as a chemical reaction. Since there is no starch in water, the iodine in the water stays the same color as it started (brown). Hope that helps!! :)
What is mixed with cocaine to turn it brown?
Heroin.
A yellow brown indicator that turn blue black when it comes in contract with starch?
That would probably be referring to iodine.
Why did each of the solutions turn iodine blueblack at the start of the experiments?
Iodine is famous for testing of the presence of starch. I would assume starch is present in the solution, therefore iodine would turn blue. Originally, the colour of iodine solution is brown.
What color is iodine on litmus paper?
The water solution of iodine turn blue litmus paper to red.
What happens when baking soda and iodine are mixed?
I assume that the questioner means what happens when iodine and baking soda (sodium bicarbonate or NaHCO3) are mixed in water. Whether the components are mixed in water or not, no chemical reaction would take place. If added to water, both the iodine and baking soda would dissolve, and the water would become a dark, reddish-brown. Iodine usually acts as an oxidizing agent, but iodine does not oxidize baking soda because the carbon atom in baking soda already has a formal charge of +4, and oxygen is a more powerful oxidizer than iodine.
What colors does starch turn if there is a little amount present?
starch will not change its own colour but it can change the colour of iodine solution. iodine solution is originally brown. after adding starch, it will turn into dark blue.
