Why is spoiled milk a chemical change

Chemical, as chemicals are change resulting in the formation of new substances. Explanation: When milk turns sour, what is actually happening is that bacteria are converting the lactose sugars in milk into energy, with lactic acid as a byproduct. Related questions How can you increase the speed of a chemical change? What is a chemical change? How are physical changes different from chemical changes?

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What term is used to describe splitting a large atomic nucleus into two smaller ones. Q: Is spoiling milk a physical change or chemical change? Write your answer Related questions. Is milk spoiling a chemical or physical change? Is the spoiling of milk a chemical or physical change? Why is milk spoiling a chemical change? Is milk spoiling a physical or chemical change? Whole milk curdles if vinegar is added to it - physical or chemical change?

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Is turning milk into curd a physical change? For a change to qualify as chemical a new substance has to be formed and energy is either absorbed or given off. A physical change is characterized with states of matter and energy. The molecules are rearranged but the internal structure is not affected in any way.

Common examples of chemical changes include: the rusting of iron iron oxide is formed , burning gasoline carbon dioxide and water is formed and rising of bread carbohydrates are converted into carbon dioxide. Examples of physical changes include: any change in phase or state sublimation, condensation, vaporization, freezing and melting , breaking glass, melting ice, crushing a can and dissolving sugar in water.