is burning of coal a chemical change
Materials which are used for scouring are known as abrasives. Please see the related link.
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.
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.
chemical change
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.
Materials which are used for scouring are known as abrasives. Please see the related link.
W/o the hormonal change related to the pregnancy there won't be any milk.
A scouring pad is a pad used to scour something
I can see that I'm going to need another scouring pad. We're scouring the woods for the child with all available resources.
is milk an example of chemical change
Milk curdling is a chemical change.
The heat energy in the milk had to be removed in order to change the phase of milk.
In my childhood one used wet wood ash as a scouring powder.
COWS
This is a chemical change.
Chocolate milk is a mixture. It is not a change of any sort. The making of chocolate milk is a physical change as none of the components change their chemical identity.
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.