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When milk turns sour this is a physical change because a change in odor does not indicate a chemical change?
Actually, when milk turns sour, it is primarily a chemical change rather than a physical change. This occurs due to the fermentation process, where bacteria convert lactose (milk sugar) into lactic acid, resulting in a change in odor, taste, and texture. The formation of new substances, such as lactic acid, signifies a chemical change, as opposed to a mere alteration of physical properties.
Is it a physical or chemical change. Acids produced by bacteria in plaque cause teeth to decay?
This is a chemical change because the acids produced by bacteria in plaque are reacting with the minerals in the teeth, breaking them down and causing decay.
Is milk sours a example of physical change?
No, milk souring is an example of a chemical change. When milk sours, bacteria ferment the lactose in the milk, producing lactic acid, which changes the composition and properties of the milk. This is a chemical reaction, not a physical change.
Is a cavity a physical change?
The tooth is rotting so it is changing its nature due to the influence of bacteria or the acid secreted by bacteria. If the new material is no longer dentine but the byproducts of decay then it is a chemical change.If the tooth breaks then that is a physical change.
Is fermenting cheese a physical change?
Fermenting cheese is considered a chemical change because it involves the breakdown of proteins and fats by the action of bacteria, enzymes, or other microorganisms, leading to the formation of new compounds and flavors. This results in the transformation of the cheese at a molecular level, which is why it is classified as a chemical change rather than a physical change.
Why Milk souring is a physical change?
When milk sours, it undergoes a chemical change rather than a physical change. The bacteria in the milk ferment the lactose sugar into lactic acid, changing the chemical composition of the milk. This process cannot be reversed by physical means, distinguishing it as a chemical change.
When milk turns sour this is a physical change because a change in odor does not indicate a chemical change?
Actually, when milk turns sour, it is primarily a chemical change rather than a physical change. This occurs due to the fermentation process, where bacteria convert lactose (milk sugar) into lactic acid, resulting in a change in odor, taste, and texture. The formation of new substances, such as lactic acid, signifies a chemical change, as opposed to a mere alteration of physical properties.
Is the nitrogen cycle a physical or a chemical change?
The nitrogen cycle involves both physical and chemical changes. Physical changes include nitrogen fixation by bacteria and nitrification, while chemical changes include denitrification and ammonification.
Is it a physical or chemical change. Acids produced by bacteria in plaque cause teeth to decay?
This is a chemical change because the acids produced by bacteria in plaque are reacting with the minerals in the teeth, breaking them down and causing decay.
What two examples is the physical change and chemical change of milk?
An example of a physical change in milk is when you freeze it, changing its state from liquid to solid without altering its chemical composition. A chemical change in milk occurs when it sours, involving the breakdown of lactose by bacteria to form lactic acid, altering its chemical composition.
Is souring a physical change?
It is not physical but rather chemical: milk sugar (lactose) is converted to lactic acid by Lactobacillus bacteria.
Is stapling an envelope a physical change or chemical?
A physical change
Wood rotting chemical or physical change?
Chemical Because physical is when you change it your self
When milk turns sour is it a chemical or physical change?
chemical change
Is bacteria breaking down food chemical or physical change?
In all types of break down of food, there is a chemical reaction. regards.
Is milk sours a example of physical change?
No, milk souring is an example of a chemical change. When milk sours, bacteria ferment the lactose in the milk, producing lactic acid, which changes the composition and properties of the milk. This is a chemical reaction, not a physical change.
Is a cavity a physical change?
The tooth is rotting so it is changing its nature due to the influence of bacteria or the acid secreted by bacteria. If the new material is no longer dentine but the byproducts of decay then it is a chemical change.If the tooth breaks then that is a physical change.
