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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 the color of ethanoic acid when added to universal indicator?
When ethanoic acid is added to universal indicator, it typically turns the solution a pink to red color, indicating that it is an acidic substance.
What is a substance that resists a pH change when small amounts of acid or base are added?
A buffer solution is a substance that resists changes in pH when small amounts of acid or base are added. Buffers are typically composed of a weak acid and its conjugate base (or a weak base and its conjugate acid) that can neutralize added acid or base without drastic changes in pH.
What happens when methyl orange is added to sulphuric acid?
Methyl orange is a pH indicator that changes color in acidic and basic solutions. When added to sulfuric acid, which is a strong acid, the methyl orange changes color from yellow to red. This color change indicates that the solution is highly acidic.
Why there is no colour change when phenolphthalein is added to the oxalic acid?
Oxalic acid is a weak acid and phenolphthalein is a pH indicator that changes color in the pH range of 8.2 to 10. Oxalic acid solutions typically have a pH below the range where phenolphthalein changes color, so there is no visible change when phenolphthalein is added to oxalic acid.
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 in red cabbage?
it is a controll when a acid or a base is added it changes color
What is the color of ethanoic acid when added to universal indicator?
When ethanoic acid is added to universal indicator, it typically turns the solution a pink to red color, indicating that it is an acidic substance.
What is a substance that resists a pH change when small amounts of acid or base are added?
A buffer solution is a substance that resists changes in pH when small amounts of acid or base are added. Buffers are typically composed of a weak acid and its conjugate base (or a weak base and its conjugate acid) that can neutralize added acid or base without drastic changes in pH.
What happens when methyl orange is added to sulphuric acid?
Methyl orange is a pH indicator that changes color in acidic and basic solutions. When added to sulfuric acid, which is a strong acid, the methyl orange changes color from yellow to red. This color change indicates that the solution is highly acidic.
Why there is no colour change when phenolphthalein is added to the oxalic acid?
Oxalic acid is a weak acid and phenolphthalein is a pH indicator that changes color in the pH range of 8.2 to 10. Oxalic acid solutions typically have a pH below the range where phenolphthalein changes color, so there is no visible change when phenolphthalein is added to oxalic acid.
If phenolphthalein is added to HBr?
If phenolphthalein is added to HBr (hydrobromic acid), which is a strong acid, the phenolphthalein indicator will remain colorless because it only changes color in the presence of a base. Since HBr is an acid, it will not cause the indicator to change color.
What happen when phenopthelein is added to acid?
Phenolphthalein is colorless in acidic solutions and will remain colorless when added to an acid. This is because phenolphthalein changes color at a pH of around 8.2 to 10, indicating alkalinity.
What happened when sulphuric acid add in bromothymol blue solution?
When sulfuric acid is added to bromothymol blue solution, the color changes from blue to yellow. This is due to the decrease in pH caused by the addition of the acid. Bromothymol blue is a pH indicator that changes color in response to changes in acidity or alkalinity.
What colour does universal indicator change to if carbonate acid is added?
Universal indicator changes to a color in the green/blue range when carbonate acid is added. This indicates a basic or alkaline pH level.
What is the correct scientific term for a substance that changes colour in this way for litmus?
indicator
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
