It's not a physical change
Shaking milk into butter is a physical change. The change in texture and appearance is due to the separation of the fat molecules in the milk, resulting in the formation of butter. No new substances are formed during this process.
chemical change
Milk turning sour is a chemical change. It occurs due to the fermentation of milk sugars by bacteria, leading to the production of lactic acid, which changes the taste and smell of the milk.
No, milk turning sour is a chemical change because the bacteria in the milk interact with the lactose to produce lactic acid, changing the composition of the milk.
Milk is normally a liquid(a suspension of cream droplets in water), by freezing it milk changes from a liquid to a solid. This is a physical change, the substance is still milk, however it is no longer a liquid, it has changed into a solid.
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.
The process of milk turning into curd is a chemical change because it involves the fermentation of lactose by bacteria present in the curd culture. This fermentation process causes a change in the chemical composition of the milk, leading to the formation of curd through the breakdown of lactose into lactic acid.
Adding cold milk to hot coffee is a physical change because the milk and coffee retain their original chemical properties after mixing. The change in temperature is a physical property of the substances.
The process of turning milk into yogurt involves a chemical change. The live bacterial cultures added to milk ferment the lactose and produce lactic acid, which causes the milk to thicken and change in texture and taste.
Boiling milk is a physical change because it does not alter the chemical composition of the milk. The heat causes the milk to change from a liquid to a gas without changing its molecular structure.
This is a chemical change.
yes it is a physical change. there is no chemical change