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What is a substance that changes color when mixed with an acid or base?
Wiki User
∙ 7y ago
acid base indicator or pH indicator
Some examples of acid base indicators are: gentian violet, malachite green, thymol blue, methyl yellow, bromophenol blue, congo red, methyl orange, screened methyl orange, bromocresol green, methyl red, methyl purple, phenolphthalein, indigo carmine, hydrangea flowers, anthocyanin, litmus, red cabbage, and purple cauliflower.
Wiki User
∙ 7y ago
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What does an acid do to blue litmus?
If a substance changes the color of a blue litmus paper to red, it is acidic blue to red
What color does BTB turn when mixed with a acid or a base?
It forms carbonic acid and turns yellow
Phenolphthalein change color when mixed with hydrochloric acid?
No, phenolphthalein remains colourless in the presence of an acid.
What color does an acid turn the indicators?
If a substance is an acid, it would turn red on a pH indicator
What is a compound that changes color when in contact with an acid or a base called?
It's called an Acetic Acid.
What does an acid do to blue litmus?
If a substance changes the color of a blue litmus paper to red, it is acidic blue to red
Why is a indicator's reaction in acids and bases a chemical change?
Indicates whether the substance is an acid or alkali.
What is a substance that releases hydrogen ions when mixed with water?
An acid.
Why no change in red litmus when placed in hydrochloric acid?
It is because the red litmus paper only changes its color (from red to blue) when exposed to any basic substance. Hydrochloric acid is acidic, thus there is no change in the color of the red litmus paper, although the acid would change the color of the blue litmus paper (pH paper that tests for acidity; changes from blue to red in the presence of acid)
What substance is the color of lime green?
Its citric acid.........
What is an acid and base?
An acid base indicator is a substance that changes colour due the PH of the medium in which it is dissolved.
What changes in color it is acid?
it depends on the indicator!
What is an idicator?
Indicator can be defined as a benchmark for the presence or absence of a condition. Example: pH indicator indicates the pH of the given sample. Environmental bioindicator indictes the environmental level of pollution
What color does BTB turn when mixed with a acid or a base?
It forms carbonic acid and turns yellow
Phenolphthalein change color when mixed with hydrochloric acid?
No, phenolphthalein remains colourless in the presence of an acid.
What is an indicator as related to an acid and a base?
It is a substance(chemical or natural) which changes colour in the presence of an acid or base.
What color does an acid turn the indicators?
If a substance is an acid, it would turn red on a pH indicator
