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When onion solution, which contains anthocyanins, is added to acids, it typically turns a reddish color due to the lower pH. In contrast, when mixed with bases, the solution changes to a greenish-yellow hue as the pH increases. This color change is a result of the pH-sensitive nature of the anthocyanins present in the onion.
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What is the colour of the solution if zinc is added to copper sulphate solution?
No colour
What colour does universe indicator with antacid solution?
The universe as a whole does not have a specific colour. However, in a science experiment, when an antacid solution is added to a universal indicator, it may change colour based on the pH level of the solution. This change in colour signifies the acidity or alkalinity of the solution.
What colour does acids change litmus paper to?
It appears to be red if a lot of hydrogen ions is removed by a higher concentration of base added
What color would you see if iodine solution is added to starch?
The color change that occurs when iodine solution is added to starch is a dark blue or purple color. This reaction is commonly used to test for the presence of starch in a solution.
What do acids increase the number of when added to a chemical?
Acids increase the concentration of hydrogen ions (H+) when added to a chemical solution. This increase in H+ ions can lower the pH of the solution, making it more acidic.
What is the colour of the solution if zinc is added to copper sulphate solution?
No colour
What colour does universe indicator with antacid solution?
The universe as a whole does not have a specific colour. However, in a science experiment, when an antacid solution is added to a universal indicator, it may change colour based on the pH level of the solution. This change in colour signifies the acidity or alkalinity of the solution.
When copper sulfate is added to water it .......to form a?
Why does copper sulfate change its colour when water is added
What best describes a buffer?
A buffer is a substance in a solution that releases and captures hydrogen ions, keeping the pH the same.Sodium hydroxide, a base, is added to the solution, but the pH of the solution does not changeA buffer resists change in pH by accepting hydrogen ions when acids are added to the solution and donating hydrogen ions when bases are added.
What colour changes what acids and bases are added to rose indicator?
acids-magenta bases-green
What colour does acids change litmus paper to?
It appears to be red if a lot of hydrogen ions is removed by a higher concentration of base added
What colour does universal indicator change to Hydrochloric acid is added?
Universal indicator changes to red/orange when hydrochloric acid is added, indicating that the solution is acidic.
What colour does iodine become when a protein solution is added?
Iodine turns blue-black when added to a protein solution such as starch. This color change indicates the presence of complex polysaccharides like glycogen or amylose.
What chemicals can be used to help mitigate a change in pH when acids are introduced into a solution?
Chemicals such as buffers, like sodium bicarbonate or sodium hydroxide, can be used to help stabilize pH levels when acids are added to a solution. Buffers work by resisting changes in pH by neutralizing the added acid.
What colour does potato change to when Benedict solution is added?
Potato turns blue or purple when Benedict's solution is added, indicating the presence of reducing sugars such as glucose. This color change occurs due to the chemical reaction between the reducing sugars in the potato and the copper ions in the Benedict's solution.
What colour is produced when universal indicator is added to acetic acid?
When universal indicator is added to acetic acid, it typically turns a shade of red, indicating that the solution is acidic. Acetic acid is a weak acid, so the color change may not be as intense as with stronger acids.
What color would you see if iodine solution is added to starch?
The color change that occurs when iodine solution is added to starch is a dark blue or purple color. This reaction is commonly used to test for the presence of starch in a solution.
