Chemical VS Physical Changes

A chemical change is a process where substances combine or break apart to form new substances with different properties.

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Burning wood is an example of a chemical change, as it transforms into ash and smoke.

Melting ice is an example of a physical change, as it changes from solid to liquid but remains water.

The chemical composition changes, resulting in the formation of new substances.

The chemical composition remains the same; only the physical state or appearance changes.

Rusting of iron is a chemical change because it forms a new substance, iron oxide.

Dissolving sugar in water is a physical change because the sugar can be recovered by evaporating the water.

Indicators of a chemical change include color change, gas production, temperature change, and the formation of a precipitate.

Boiling water is a physical change because it changes from liquid to gas without altering its chemical composition.