is ice melting a physical or a chemical change?

Is rust an example of a physical or a chemical change?
Is burning an example of physical or chemical change

1 answer

Ice melting is a physical change as the substance is changing from solid to liquid state without undergoing any chemical changes.

Rust is an example of a chemical change as it is the result of a chemical reaction between iron, oxygen, and water that produces a new substance with different properties.

Burning is an example of a chemical change as it involves the reaction of a material with oxygen or other substances to produce new substances and energy in the form of heat and light.