Hint: Physical alterations may only impact or induce changes to the shape of a material, but never the fundamental chemical structure. Chemical alterations enable a material to turn into a whole new substance with a totally different chemical structure.
Complete answer:
The process of turning milk sour may be explored in depth.
Lactose is a kind of sugar that is present in milk. Milk also contains lactobacillus bacteria, which are entirely natural bacteria present in milk and do not cause any damage.
As milk begins to turn sour, the lactobacillus Lactose sugars contained in milk are converted into energy by microorganisms. However, as a byproduct of energy generation, lactic acid is produced during the conversion. It is important to note that anytime any reaction generates a new product, it becomes a chemical phenomena; therefore, milk going sour is a chemical process since new chemicals such as lactic acid are generated.
As a result, milk souring is regarded as a chemical transition or chemical change since it results in the formation of a new product, lactic acid, leaving the milk sour.
Note:
The following are common instances in which milk soured:
When we set a container containing milk in an area with high moisture content, the milk immediately sour.
Another example is that exposing the milk container to high temperatures would accelerate the souring process, which should be avoided.
Also, if the container is not well closed or if dust enters and contaminates it, the milk in it will quickly become sour.
Related Questions
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Why is milk souring a chemical change?
Milk souring is considered a chemical alteration since it results in the creation of sour-tasting lactic acid.
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Why is souring milk not a physical change?
As a result, milk souring is regarded as a chemical transition or chemical change since it results in the formation of a new product, lactic acid, leaving the milk sour.
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Which of the following is a chemical change souring milk?
Souring of milk results in the conversion of milk sugar to lactic acid.
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Is milk fermenting a chemical change?
Fermentation is an irreversible process since the resulting alcohol cannot be converted back into sugar. As a result, fermentation is a chemical change.
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What is milk souring?
Soured milk refers to a variety of culinary items created by acidifying milk. Acidification, which imparts a sour flavor to milk, is accomplished by either bacterial fermentation or the addition of an acid, such as lemon juice or vinegar.
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Is souring of milk a reversible change yes or no?
Souring of milk – Irreversible.