A substance that changes color in the presence of an acid or base is called an indicator.
Indicators change color when acid/alkalies are in use. One such substance is phenolphthalein and also litmus paper.
There are other substances such as rose petals, beet root, tea etc.
Indicator, for more info go to your school science book "California Physical Science" and it's located on pg. 270
its called indicator.
Such as Boiled Cabbage ( the juice) blue lithmus paper (stays blue if a base, turns red if acid) red lithmus paper (stays red if acid, turns blue if a base)
Indicator
iron
It's called an Acetic Acid.
It is litmus, an extract from several different species of lichens, that is used as an indicator between acid and alkaline conditions.
Which combination describes the flame color of the compound when heated?
CHCl3 is a polar compound. it hasn't a color.
iron
It's called an Acetic Acid.
It's called an Acetic Acid.
Indicators
it changes color
It is litmus, an extract from several different species of lichens, that is used as an indicator between acid and alkaline conditions.
changes color
This substance is called indicator.
It changes color.
It changes color
.
It changes it color because of special cells called "chromatophores". These chromatophores contain sacks of color pigments.