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Chemical changes can be reserved by physical change?
No, chemical changes cannot be reversed by physical changes. Chemical changes involve the formation of new substances with different properties, while physical changes only affect the state or appearance of a substance without changing its chemical composition. Once a chemical change occurs, it cannot be undone by a physical change.
What changes can't be reveresed by physical means?
Chemical changes.
Can chemical changes be undone using physical means?
No.
What changes can't be reversed by physical means?
Changes that involve irreversible chemical reactions, such as burning wood to ashes or baking a cake, cannot be reversed by physical means. Once the chemical bonds are broken or rearranged, it is not possible to return the substances to their original state through physical processes alone.
Is a flammable a chemical or a physical?
Flammable is a chemical property. Flammable means that the substance will burn. Burning or combustion involves chemical changes as the substance is oxidised.
What can be seprated by chemical means but not by physical means?
The elements of a chemical compound can be separated only by chemical means, but not by physical means.
Physical and chemical propertires?
Physical means the color, density, state of matter, its structure etc etc. But chemical means how it reacts with water, acid, base and how it changes when it is heated with some other chemicals etc.
How do you separate mixtures and compounds?
You can break down a mixture by physical means
What is a physical versus chemical change?
A PHYSICAL CHANGE MEANS CHANGE IN EXTERNAL APPEARANCE .A CHEMICAL CHANGE MEANS THE CHANGE IN THE PARTICLES BY WHICH IT IS MADE up OF.Physical Changes are d changes which are reversible .In this change we can get the products back. eg-Mixing of water and salt ,we can get salt back .Chemical changes are d changes which are irreversible . In this change we cannot get the products back . eg- Burning of candle , we cannot get the matchstick back after burning .
What name do you give to temporary changes into materials?
Temporary changes in materials are often referred to as physical changes. These changes do not alter the chemical composition of the material and can usually be reversed by physical means. Examples include changes in state (e.g. melting, freezing) or changes in shape.
Is condension a chemical or physical change?
actually it is a CHEMICAL change...because physical means you cant reverse the compounds like plaster of Paris mixed with vinegar turns hard but is an experiment that you cannot reverse back!! xxx
Explain why burining a candle is a chemical cange wile melting wax is a physical change?
Can you recover the original material(s) after the change without using chemical means? Burning - no. What was once the wax (and wick) now have different chemical compositions that cannot be recovered other than by chemical means. Thus, it's a chemical change. Melting - yes. The wax can be recovered without using chemical means. The melted wax is allowed to cool down, and this is a physical change, so the recovery is by physical means. Thus, it's a physical change. Tip: how do you reverse a change? That's the type of change it is.
