0
What else can I help you with?
What color does lime water change to when carbon dioxide is bubbled in?
Lime water changes from clear to milky/cloudy when carbon dioxide is bubbled in, indicating the formation of calcium carbonate.
Is water corporation physical or chemical change?
chemical because it involves stuff like chlorine
What solution keeps a cell the same size and has no change?
Isotonic solution, where the concentration of solutes inside and outside the cell is the same, will keep the cell the same size with no change. This is because there is no net movement of water into or out of the cell, maintaining equilibrium.
What evidence of chemical reaction when bleaching a stain?
For most kinds of bleach, it is Redox (Oxi-Reduction). Traditional bleach is mainly composed of molecules with chlorine, which is what bleaches the stains. When something is bleached it is because the chlorine is reacting with the substance in the stain. Since the chlorine ions are Cl-, they have extra electrons and donate them to the molecules of the stain: this is reduction of the molecules of the stain. The chlorine loses an electron exactly because it donated it to that molecule: this is oxidation of the chlorine ions. Hence Oxidation-Reduction, Oxi-Reduction, Redox.
How many more times acidic is a solution at pH 2.0 than a solution at pH 4.0?
A solution at pH 2.0 is 100 times more acidic than a solution at pH 4.0. This is because the pH scale is logarithmic, with each change of 1 unit representing a 10-fold change in acidity.
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-
Bromothyl blue and water were bubbled explain why the solution colour changed?
The solution's color changed because bromothymol blue is a pH indicator that changes color based on the acidity or alkalinity of the solution it is in. When bubbled with water, carbon dioxide from the air dissolves in the water, forming carbonic acid, which lowers the pH of the solution, causing the bromothymol blue to change color.
What may happen to a piece of coloured material when it is soaked in an aqueous solution of chlorine?
The coloured material may lose its colour, because many dyes and pigments are bleached by an aqueous chlorine solution.
What color change occurs when chlorine gas is passed through a solution of potassium bromide?
When chlorine gas is passed through a solution of potassium bromide, the solution will change from colorless to yellow. This indicates the formation of elemental bromine as a result of the reaction between chlorine and bromide ions.
Carbon dioxide is bubbled with lime water. what do we observe?
When carbon dioxide is bubbled through lime water, the lime water turns milky due to the formation of calcium carbonate, a white precipitate. This is a common test for the presence of carbon dioxide gas.
What happens when carbon dioxide is bubbled into hydrogen carbonate indicator?
When carbon dioxide is bubbled into a hydrogen carbonate indicator, the indicator solution will turn yellow. This is due to the formation of carbonic acid, which is a weak acid. The carbon dioxide reacts with water in the indicator solution to form carbonic acid, causing the color change.
What would you see when ozone is bubbled through aqeous acidified potassium iodide?
from colourless(solution) to brown(solution)
Is reacts violently with chlorine physical or chemical property?
Reacting violently with chlorine is a chemical property because it describes how a substance undergoes a chemical change when coming in contact with another substance, in this case, chlorine.
What colour change is seen when excess potassium iodine is reacted with chlorine?
When excess potassium iodide is reacted with chlorine, the solution changes from colorless to dark brown due to the formation of Iodine (I2). Excess potassium iodide reacts with chlorine to form iodine, which imparts the dark brown color to the solution.
When chlorine is added to potassium iodide solution the colour changes from colourless to a dark reddy brown why does this happen?
The dark red-brown color change occurs because the chlorine oxidizes iodide ions to form iodine, which reacts with excess iodide ions to form triiodide ions. These triiodide ions absorb light in the visible range, resulting in the dark red-brown color observed in the solution.
Why can you not remove the salt from the solution by filtering?
Because the salt solution is monophasic; filtering is applied when a precipitate exist.
What color does lime water change to when carbon dioxide is bubbled in?
Lime water changes from clear to milky/cloudy when carbon dioxide is bubbled in, indicating the formation of calcium carbonate.
