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They aren't. Most acids are colorless liquids (sometimes with a yellow/green hue) and most bases are white or yellow-white. What you are thinking of is universal indicator, which is an organic compound that turns red at a low pH (acidic) or blue at a high pH (basic/alkaline).
What else can I help you with?
Is an indicator color change an acid or base?
depends on the indicator used. in case of red litmus... changes to blue for basesand no change in acids blue litmus - changes to red in acids, no change in bases phenolpthelin - changes to pink in bases, no change in acid methyl orange - changes to red in acids and yellow golden in bases
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 is a compound that changes color when in contact with an acid or base?
It is litmus, an extract from several different species of lichens, that is used as an indicator between acid and alkaline conditions.
Can reagent bromthymol blue or phenolphthalein could be considered to be an acid indicator?
Phenolphthalein is typically used as a base indicator as it changes color in the presence of bases. Bromthymol blue can be used as both an acid and a base indicator, with different color changes for each.
How does a pH indicator separate acids from bases?
A pH indicator changes color depending on the acidity or basicity of the solution it is in. In an acid, the indicator will have one color and in a base, it will have a different color. By observing the color change in the pH indicator, one can determine whether the solution is acidic or basic.
Is an indicator color change an acid or base?
depends on the indicator used. in case of red litmus... changes to blue for basesand no change in acids blue litmus - changes to red in acids, no change in bases phenolpthelin - changes to pink in bases, no change in acid methyl orange - changes to red in acids and yellow golden in bases
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 changes in color it is acid?
it depends on the indicator!
What is a compound that changes color when in contact with an acid or base?
It is litmus, an extract from several different species of lichens, that is used as an indicator between acid and alkaline conditions.
What changes the color of indicators an acid or base or neither?
The color of indicators is changed by acids and bases due to their ability to alter the pH of a solution. Acids typically turn pH indicators like litmus paper red, while bases turn them blue. The specific color change depends on the type of indicator used, as different indicators have unique pH ranges for color changes. Therefore, both acids and bases can affect the color of indicators.
what acid-base change color when in contact with an acid or a base?
pH indicators change the color in contact with acids or bases.
Can reagent bromthymol blue or phenolphthalein could be considered to be an acid indicator?
Phenolphthalein is typically used as a base indicator as it changes color in the presence of bases. Bromthymol blue can be used as both an acid and a base indicator, with different color changes for each.
What chemical changes the color in acids and bases?
litmus
How does a pH indicator separate acids from bases?
A pH indicator changes color depending on the acidity or basicity of the solution it is in. In an acid, the indicator will have one color and in a base, it will have a different color. By observing the color change in the pH indicator, one can determine whether the solution is acidic or basic.
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.
How are acids and bases indicated?
Well, to indicate whether a liquid is an acid or a base, you can buy litmus paper. Litmus paper changes color when it is placed in a liquid that isn't water. The color it changes to indicates where it is on the pH scale. If on the pH scale, the liquid is from 1-7 it is a acid. If it is 8- 14, it's a base. To find which color corresponds to which number on the pH scale, just look it up online.
