Is boiling a chemical change?
The change from a liquid phase to a gaseous phase occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid. Boiling is a physical change and molecules are not chemically altered during the process.
Are chemical changes reversible?
Physical changes in matter are often reversible: An ice cube can melt into liquid water, and then the liquid water can be frozen back into an ice cube. Chemical changes, on the other hand, are not reversible: A log burned in a fire turns to ashes, but the ashes cannot be changed back into a log.
Is boiling egg a chemical change?
The chemical composition of a boiled egg is different from that of a raw egg. Heat causes denaturation of protein chains, converting egg into a solid mass which can not be converted back into its solid form. Therefore, it is a type of chemical change.
Is dissolving a chemical change?
A physical change, such as a state change or dissolving, does not create a new substance, but a chemical change does. A chemical change is the result of a chemical reaction. In a chemical reaction, the atoms and molecules that interact with each other are called reactants.
Why is boiling not a chemical change?
What physical changes Cannot be reversed?
Is boiling a physical or chemical change?
What is an example of a reversible change?