The pH of 5% vinegar is between 2 and 3. The color of universal indicator in that range is reddish-orange.
Universal indicator turns red when added to vinegar, indicating that the vinegar is acidic.
Universal indicator changes to green when sodium bicarbonate is added.
Because oven cleaner contains Sodium Hydroxide (Na OH), a 'strong' alkali/base, to dissolve the grease, it would change Universal Indicator a deep blue/purple colour.
A universal indicator changes to red when mixed with a strong acid.
Citric acid is generally colorless in universal indicator. It is a weak acid, so it does not exhibit a strong color change in the indicator solution.
Universal indicator turns red when added to vinegar, indicating that the vinegar is acidic.
red
Universal indicator changes to green when sodium bicarbonate is added.
Because oven cleaner contains Sodium Hydroxide (Na OH), a 'strong' alkali/base, to dissolve the grease, it would change Universal Indicator a deep blue/purple colour.
A universal indicator changes to red when mixed with a strong acid.
Citric acid is generally colorless in universal indicator. It is a weak acid, so it does not exhibit a strong color change in the indicator solution.
Universal indicator changes to red/orange when hydrochloric acid is added, indicating that the solution is acidic.
When acid is added to universal indicator, the indicator will typically change to shades of red, orange, or yellow, depending on the strength of the acid.
A universal indicator changes to a greenish-blue color when mixed with ethanol.
Green is the color that universal indicator turns to when it is neutral.
The universal indicator turns red in acidic solutions.
When universal indicator is added to milk, it will change to a blue or purple color, indicating a basic pH level.