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Is heating chocolate over boiling water a physical or chemical change?
physical change
Is cold water heating up to its boiling point a chemical change?
No, the process of cold water heating up to its boiling point is a physical change rather than a chemical change. This is because the molecules in water remain the same during the transition from liquid to gas; only their arrangement and energy levels change.
Is heating a chemical or physical change?
Heating a substance can result in either a physical change or a chemical change. A physical change does not alter the substance's composition, such as melting or boiling, while a chemical change leads to the formation of new substances with different properties, such as burning or baking.
Why is dissolving hot chocolate powder in boiling water a example n of a physical change?
It is a physical change because the boiling water will turn into steam (process called gas), and in reverse it will turn into water again (process called condensation). It will be the same substance all the time
Is boiling does that changes as a physical or chemical?
Boiling is a physical change because the substance is changing from a liquid to a gas without changing its chemical composition.
When boiling take place is the phase change a chemical or physical change?
Boiling is a physical change.
Is heating an iron nail a physical or chemical change?
Heating is a physical change.
Is boiling helium a physical change?
Yes, boiling helium is a physical change. When helium transitions from a liquid to a gas upon heating, its chemical composition remains unchanged; only its state of matter alters. This process is reversible, as helium can be condensed back into a liquid by cooling.
Is boinling water a physical change?
Boiling is a physical change.
Is boiling a chemical or physical change?
When water boils, it is a physical change.
Which of them is a reversible change coffee dissolving Water boinling Chocolate melting wood burning?
Coffee dissolving, water boiling and chocolate melting are reversible physical transformations whereas wood burning is a chemical combustive transformation.
Is heating a glass a chemical or physical change?
Heating is a physical process.
