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The fresh milk contains Lactose , a sugar, the temperature about 38 to 40 Celsius and oxygen of air oxidized the Lactose into Lactic acid which saturates the fats of milk so milk becomes sour. the pH of fresh milk is basic (about 8 to 9) after souring it moves to acidic side (about 5 to 6).
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Is souring a milk a chemical reaction?
yes See Is Sour Milk a physical or chemical change for more info
Why is churning a chemical change?
Souring milk causes a chemical change because it changes its state of matter (from a liquid to a semi-solid), and it grows bacteria. When milk sours it causes a permanent change, therefore making it a chemical change.
Is milk souring an example of chemical change?
Yes it is a chemical reaction between the calcium and the oxygen [i may be wrong their] but the rate of reaction is very slow.
What condition is lactic acid fermentation most likely to occur?
sleeping===================Wild Guess #2:Souring of milk.
What are two or more kinds of chemical change?
In a chemical change, you get a new form of matter you didn't have before, even though it's just a rearrangement of your old matter. Examples: iron rusting, sugar fermenting, milk souring, food digesting, wood burning.
Souring of milk is an example of a?
Chemical Change.
Which of the following involves a chemical change combinding an acid and a base dew forming or souring milk?
Souring milk! (Heh, I hate section reviews!)
Unscramble this please uoisrng?
Souring, as in Souring milk," Mom! This Milk Is Souring!" YUCK!!! ==Gee, sour milk...?== Now that's a "rousing" thought...
What are the properties of milk?
souring is the property of milk
What is a physical change Milk becomes sour an iron nail rusts?
Both milk souring and iron rusting are chemical changes.
Why Milk souring is a physical change?
It is not physical but rather chemical: milk sugar (lactose) is converted to lactic acid by Lactobacillus bacteria.
Is milk souring a physical change?
It is not physical but rather chemical: milk sugar (lactose) is converted to lactic acid by Lactobacillus bacteria.
What actors and actresses appeared in Souring of Milk - 1947?
The cast of Souring of Milk - 1947 includes: Carleton Hobbs as Himself - Narrator
Is souring a milk a chemical reaction?
yes See Is Sour Milk a physical or chemical change for more info
Why does milk go sour?
The souring and curdling of milk is caused by bacteria.
What is it called when milk spoils?
The spoilage of milk is sometimes called souring.
Souring milk is an example of?
making regular milk.
