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What is the color of aqueous bromine after addition of the hydrocarbon?
The aqueous bromine will change from orange to colorless after addition of a hydrocarbon due to the formation of an organic bromide compound.
Why does the color of aqueous potassium bromide change when chlorine gas is bubbled into it?
Chlorine is a stronger oxidizer than elemental Bromine. So, when yellowish chlorine gas is bubbled through the Bromide solution, a red colour is formed which is Bromine. Chlorine oxidizes Bromide ions to elemental Bromine while itself is reduced to Chloride ions. So, the total reaction is: Cl2 + Br- ----> Br2 + Cl-
What is the enthalpy of formation of aqueous potassium chloride?
The enthalpy of formation of aqueous potassium chloride is approximately -436.1 kJ/mol. This value represents the energy change when 1 mole of potassium chloride is formed in its standard state from its elements in their standard states at 25°C and 1 atm.
What are the observations when chlorine reacts with potassium bromide?
When chlorine gas reacts with potassium bromide, the chlorine will displace bromine in the compound forming potassium chloride and bromine gas. The color of the mixture will change from colorless to reddish-brown due to the formation of bromine gas.
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 of aqueous bromine after addition of the hydrocarbon?
The aqueous bromine will change from orange to colorless after addition of a hydrocarbon due to the formation of an organic bromide compound.
Is there bromine water discoloration at reaction with aqueous solution?
Bromine water will change color in the presence of certain organic compounds, such as alkenes or phenols. When bromine water is added to an aqueous solution containing these compounds, the bromine will react with the double bonds in the alkenes or the aromatic rings in phenols, resulting in a color change from orange to colorless.
Why does the color of aqueous potassium bromide change when chlorine gas is bubbled into it?
Chlorine is a stronger oxidizer than elemental Bromine. So, when yellowish chlorine gas is bubbled through the Bromide solution, a red colour is formed which is Bromine. Chlorine oxidizes Bromide ions to elemental Bromine while itself is reduced to Chloride ions. So, the total reaction is: Cl2 + Br- ----> Br2 + Cl-
What produces a chemical change?
One example is the reaction between the aqueous solutions lead nitrate, Pb(NO3)2 and potassium chloride, KCl. They react to form solid (a precipitate) lead chloride, PbCl2, and aqueous potassium nitrate, KNO3. The balanced equation is Pb(NO3)2(aq) + KCl(aq) ---> PbCl2(s) + KNO3(aq)
Is dissolving sodium chloride a physical change?
Yes, dissolving sodium chloride in water is considered a physical change. This is because only the state of matter changes (solid to aqueous solution), and no new substance is formed.
What is the enthalpy of formation of aqueous potassium chloride?
The enthalpy of formation of aqueous potassium chloride is approximately -436.1 kJ/mol. This value represents the energy change when 1 mole of potassium chloride is formed in its standard state from its elements in their standard states at 25°C and 1 atm.
What are the observations when chlorine reacts with potassium bromide?
When chlorine gas reacts with potassium bromide, the chlorine will displace bromine in the compound forming potassium chloride and bromine gas. The color of the mixture will change from colorless to reddish-brown due to the formation of bromine gas.
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 net ionic equation for silver chloride with aqueous ammonia solution?
The net ionic equation for silver chloride (AgCl) reacting with aqueous ammonia (NH3) solution is: Ag+ (from AgCl) + 2NH3 -> Ag(NH3)2+ + Cl- where only the species that undergo a change are included. This represents the formation of a complex ion silver ammine ion.
Simple distinguished test between saturated and unsaturated compounds?
One simple test to distinguish between saturated and unsaturated compounds is the bromine water test. Saturated compounds do not react with bromine water (no color change), whereas unsaturated compounds will decolorize the bromine water due to addition of bromine across the double bond in the unsaturated compound.
How can bromine water test the difference between alkanes and alkenes?
Bromine water can differentiate between alkanes and alkenes because alkenes can decolourize bromine water due to their ability to undergo addition reactions. Alkanes, being saturated hydrocarbons, do not react with bromine water because they lack double bonds to facilitate the addition reaction.
Is iron chloride and sodium hydroxide a physical or chemical change?
The reaction between iron (III) chloride and sodium hydroxide is a chemical change as new substances are formed. Iron (III) hydroxide and sodium chloride are produced as a result of the reaction.
