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Bromine water is originally orange-brown in color. When propene is added to bromine water, the orange-brown color fades as the bromine molecules react with the carbon-carbon double bond in propene. This reaction leads to the decolorization of the bromine water to a colorless solution.
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What happens when bromine water is shaken with a saturated fat?
When bromine water is shaken with a saturated fat, the orange color of the bromine water will fade due to the reaction between the bromine and the unsaturated fatty acids in the fat. This reaction is a test for the presence of unsaturation in a compound.
What do you get from a solutin of bromine with potasium iodide?
When potassium iodide is added to a solution of bromine, a reaction occurs forming potassium bromide and iodine. The iodine produced in the reaction is responsible for the color change in the solution from orange to brown/black.
Why is smoke produced when propene is burned?
Smoke is produced when propene is burned due to incomplete combustion. This occurs when there is insufficient oxygen present to completely oxidize the propene molecule, leading to the formation of carbon particles that are visible as smoke.
What happens when 1 drop of bromine is added to vegetable oil?
When 1 drop of bromine is added to vegetable oil, a chemical reaction occurs where the bromine reacts with the unsaturated fats in the oil. This reaction causes the bromine to decolorize, turning from reddish-brown to colorless. This change is a test for the presence of unsaturated fats in the vegetable oil.
What happens when you mix bromine and sodium?
When you mix bromine and sodium, a redox reaction occurs where sodium donates an electron to bromine. This forms sodium bromide, a white crystalline solid, along with releasing a significant amount of heat and light.
What color does bromine water change when you mix it with unsaturated fat?
Bromine water changes from orange to colorless when mixed with unsaturated fats due to the addition reaction that occurs between bromine and the double bonds in the unsaturated fats.
What is the color change between aqueous bromine and sodium chloride?
When aqueous bromine reacts with sodium chloride, a red-brown color of bromine will react with sodium chloride to form colorless sodium bromide and a yellow solution. This color change occurs due to the formation of a new compound, sodium bromide, which does not have the same color as the original reactants.
What colour dous it change to during the reaction?
what colour change occurs during the calcium and hydrochloric acid reaction
Is bromine synthetic?
No, Bromine is not a synthetic element, it occurs naturally
What happens when bromine water is added to ethanol?
When bromine water is added to ethanol, the bromine will react with the ethanol forming 2-bromoethanol. The reaction occurs via nucleophilic substitution where the bromine reacts with the -OH group of ethanol. This reaction can be used as a test to distinguish between primary, secondary, and tertiary alcohols.
What happens when bromine water is added to paraffin?
When bromine water is added to paraffin, no visible reaction occurs. Paraffin is a non-reactive hydrocarbon compound, so it does not undergo a chemical reaction with bromine. The bromine remains as a colored solution with no change in the paraffin.
Does a physical or chemical change occur when aluminum foil is placed into liquid bromine and a white solid forms?
A chemical change occurs. When aluminum foil is placed in liquid bromine, the aluminum reacts with bromine to form aluminum bromide, which appears as a white solid. This reaction is a chemical change because the composition of the substances involved is altered.
What is the colour of bromine vapour?
Elemental bromine is a fuming red-brown liquid at room temperature, corrosive and toxicBromine is a chemical element with the symbol Br, and atomic number of 35. It is in the halogen group.Free bromine does not occur in nature, but occurs as colorless soluble crystalline mineral halide salts, analogous to table salt.
Why does the color of aqueous potassium bromide change when chlorine gas is bubbled into it?
When chlorine gas is bubbled into aqueous potassium bromide, a redox reaction occurs where chlorine oxidizes bromide ions to bromine atoms. The resulting bromine atoms form a reddish-brown solution, giving the potassium bromide solution a color change.
What happens when bromine water is shaken with a saturated fat?
When bromine water is shaken with a saturated fat, the orange color of the bromine water will fade due to the reaction between the bromine and the unsaturated fatty acids in the fat. This reaction is a test for the presence of unsaturation in a compound.
What do you get from a solutin of bromine with potasium iodide?
When potassium iodide is added to a solution of bromine, a reaction occurs forming potassium bromide and iodine. The iodine produced in the reaction is responsible for the color change in the solution from orange to brown/black.
Why is smoke produced when propene is burned?
Smoke is produced when propene is burned due to incomplete combustion. This occurs when there is insufficient oxygen present to completely oxidize the propene molecule, leading to the formation of carbon particles that are visible as smoke.
