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What substance changes color when exposed to an acid or base?
An indicator is a substance that changes color when exposed to an acid or base.
What will an indicator do in the presence of an acid or base?
This indicator changes his color.
What is called when a compound that changes color when in contact with an acid or a base?
It's called an Acetic Acid.
What happens when methyl orange is added to sulphuric acid?
Methyl orange is a pH indicator that changes color in acidic and basic solutions. When added to sulfuric acid, which is a strong acid, the methyl orange changes color from yellow to red. This color change indicates that the solution is highly acidic.
What is in red cabbage?
it is a controll when a acid or a base is added it changes color
What is the term for the stage in an acid-base titration when the indicator changes color?
The term for the stage in an acid-base titration when the indicator changes color is called the endpoint. It signifies that the stoichiometric equivalence point has been reached, where the acid and base have reacted completely.
What happened when sulphuric acid add in bromothymol blue solution?
When sulfuric acid is added to bromothymol blue solution, the color changes from blue to yellow. This is due to the decrease in pH caused by the addition of the acid. Bromothymol blue is a pH indicator that changes color in response to changes in acidity or alkalinity.
Why there is no colour change when phenolphthalein is added to the oxalic acid?
Oxalic acid is a weak acid and phenolphthalein is a pH indicator that changes color in the pH range of 8.2 to 10. Oxalic acid solutions typically have a pH below the range where phenolphthalein changes color, so there is no visible change when phenolphthalein is added to oxalic acid.
The point at which a drop of base changes the color of an acid solution and the color persists?
This point is known as the endpoint in a titration. It signifies that the reaction between the acid and base is complete. The color change usually happens due to the addition of an indicator, which changes color at a specific pH.
What color does citric acid change when mixed with cabbage juice?
Citric acid mixed with cabbage juice turns the solution red/pink in color. This is due to the natural pigment in red cabbage, anthocyanin, which changes color in response to changes in pH levels.
What compound changes color when in contact with an acid or a base this is called?
An acid-base indicator is a compound that changes color depending on the acidity or basicity of the solution it is in contact with. Examples include litmus, phenolphthalein, and bromothymol blue.
WHAT is the color of alizarin yellow in acid?
Alizarin yellow changes to a red color in an acidic environment.
