Bromthymol Blue indicates Carbon dioxide is present. It is also a general acid-base indicator. When it turns green it is at the endpoint of the titration. When it turns yellow, it is overshot and thus acidic.
A universal indicator changes to red when mixed with a strong acid.
When red and yellow are mixed together, they create orange.
Universal indicator will turn dark blue or purple when mixed with a strong alkali.
black + yellow = blackandyellow Or really dark yellow:):):):):):):):):):):):):):)
A universal indicator changes to a greenish-blue color when mixed with ethanol.
yellow
yellow is a base color,so it is not mixed,but blue and red cause purple.
if the bromthymol blue changed back to blue from a different color that means that different atoms of another element were in the air. if you tested the bb in a test tube and say it was turned yellow and then overnight it turned back to blue-green then it would mean that a certain amount of oxygen went into the test tube to reverse the change. if there was lots of oxygen in the air then the bb would turn completely blue since bb is not really blue but a weird green color.
Bromine turns a yellow-brown color when mixed with universal indicator.
When salt is mixed with a liquid indicator, it may not change color immediately. The liquid indicator's color change is usually due to a change in pH levels rather than the presence of salt. Salt does not typically cause a color change in liquid indicators.
Universal indicator will turn purple or blue when mixed with a weak alkali.
A universal indicator changes to red when mixed with a strong acid.
Universal indicator turns deep blue or violet when mixed with a strong alkali.
The answer will depend on which indicator is being used.
blue
The indicator's color when mixed with orange juice would depend on the specific pH indicator used. For example, phenolphthalein would remain colorless, while bromothymol blue would turn yellow due to the acidic nature of orange juice. Generally, many indicators would show a shift towards a yellow or pink hue, indicating acidity.
When red and yellow are mixed together, they create orange.