Question

what is physical change and chemical change?give two examples​

Answer 1

Here's your answer! ❤

Examples of Chemical Changes

Definition - A new compound (product) results from a chemical change as the atoms rearrange themselves to form new chemical bonds.

Examples -

Burning wood

Souring milk

Mixing acid and base

Digesting food

Cooking an egg

Heating sugar to form caramel

Baking a cake

Rusting of iron

Examples of Physical Changes

Definition - No new chemical species forms in a physical change. Changing the state of a pure substance between solid, liquid, and gas phases of matter are all physical changes since the identity of the matter does not change.

Examples -

Crumpling a sheet of aluminum foil

Melting an ice cube

Casting silver in a mold

Breaking a bottle

Boiling water

Evaporating alcohol

Shredding paper

Sublimation of dry ice into carbon dioxide vapor

Hope it helps! ☺✌

Answer 2

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Properties such as shape, size, colour and state of a substance are called it's physical properties. A change in which a substance undergoes a change a physical properties is called a physical change. A physical change is generally reversible. In a such change no new substance is formed..