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Yes, an apple slice that has been exposed to air can turn brown after a short period of time. If you need to keep the slices from turning, you can coat them with lemon juice or even lemon lime soda.

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Why pure HI kept in a bottle acquire brown colour after some time?

The brown color in the bottle of pure HI is likely due to the slow decomposition of the hydrogen iodide (HI) into iodine (I2) and hydrogen gas (H2). This reaction can be catalyzed by light, heat, or impurities in the HI solution. The formation of iodine can give the solution a brown color.


Why silver bromide is kept in brown bottle?

Silver bromide is kept in a brown bottle to protect it from light exposure. Light can cause silver bromide to degrade, affecting its sensitivity to light and ruining its performance as a light-sensitive material in photographic applications. The brown color of the bottle helps to block out damaging light rays and prevent this degradation from occurring.


WHY DID THE IRON ROD KEPT IN COPPER SULPHATE SOLUTION TURNED BROWN AFTER SOMETIME AND WHAT OTHER CHANGE WILL YOU OBSERVE?

The iron rod turned brown because it underwent a chemical reaction with the copper ions in the copper sulfate solution, forming copper metal on the surface of the iron. Another change you might observe is that the copper sulfate solution may become lighter in color as some of the copper ions plate onto the iron rod.


What will happen to a nail if kept in tap water?

If a nail is kept in tap water, it can start to rust due to the presence of oxygen and minerals in water. Over time, the nail's surface may corrode and form a reddish-brown layer known as rust.


What is an example that color change in a chemical reaction?

It can be, but does not have to be.Some chemicals called dyes will reversibly change color in different chemical environments (indicator dyes) others will permanently change color when chemically modified.Other chemicals called pigments cannot be changed in color chemically. However they are often mixed physically to produce different colors. For example paints are typically colored by blending different pigments to match color.Bleaching is a chemical change of color. It can be triggered by chemicals (e.g. bleaches), by light exposure, etc.

Related Questions

Why bananas turn brown color?

The skin of a banana turns brown or black because the skin is very sensitive and when it is kept in cold temperatures... the skin begins to low its quality, therefore turning it darker.


What happens when water is sprinkled on a slice of bread and is kept in a dark corner for a week?

Mold... Mold happens...


Why pure HI kept in a bottle acquire brown colour after some time?

The brown color in the bottle of pure HI is likely due to the slow decomposition of the hydrogen iodide (HI) into iodine (I2) and hydrogen gas (H2). This reaction can be catalyzed by light, heat, or impurities in the HI solution. The formation of iodine can give the solution a brown color.


Why is prune juice kept in brown bottles?

Prune juice is often kept in brown bottles to protect it from light, which can degrade its quality and flavor. The brown color helps block out ultraviolet (UV) light that can cause oxidation, leading to a loss of nutritional value and changes in taste. Additionally, using dark bottles can help extend the shelf life of the juice by preventing spoilage.


How much water do Petunia plants need?

The soil in which the plant is placed must be kept 'towel-wet'. This is a certain dampness which is cold to the touch but does not drip when the pot is lifted. A test for the moisture of your plant would be how easy it is to lift. If it is too light it may need water. Another sign is the color of the soil. This should be kept at a dark brown/black color rather than the light brown of dry soil.


What happens when water is sprinkled on a slice of bread and is kept in a dark corner for 7 days?

It will begin to grow mold.


Who said He kept us out of war?

Joseph Brown


What does mean when gecko eggs have brown spots?

If the geckos eggs have not been kept at the proper incubating temperatures they will usually start to turn to a different color and sometimes even dent inwards.


How did the Alaskan brown bear get to be endangered?

people kept on killing them


Why silver bromide is kept in brown bottle?

Silver bromide is kept in a brown bottle to protect it from light exposure. Light can cause silver bromide to degrade, affecting its sensitivity to light and ruining its performance as a light-sensitive material in photographic applications. The brown color of the bottle helps to block out damaging light rays and prevent this degradation from occurring.


What kept john brown from getting the nomination at Charleston?

If you are asking about the abolitionist John Brown he was never nominated for anything. He was murder.


How tall is Joe Brown?

Judge Joe Brown's height seems to be a well-kept secret. An internet search does not reveal verifiable information.