Question

physical and chemical properties​

Answer 1

Answer:

A PHYSICAL PROPERTY IS A STATE WHERE IT DESCRIBES THE PHYSICAL STATE OF AN OBJECT.

CHEMICAL PROPERTY: OBJECT OBTAINED IS NEW

Answer 2

■---■

PHYSICAL PROPERTIES

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. They are reversible

Physical property of matter includes - colour, hardness, malleability, solubility, electrical conductivity, density, melting points and boiling points.

CHEMICAL PROPERTIES

Chemical property of matter describes its pottential to undergo some chemical change or reaction by virtue of its composition. Chemical properties describe how a substance behaves during a chemical reaction. They are irreversible.

Chemical property of matter includes - flammability, toxicity, acidity, reactivity and heat of combustion.

Examples of Physical Changes :

• An ice cube melting into water.
• Dissolving sugar and water.
• Melting of wax.
• Boiling of water.

Examples of Chemical Changes :

• Mixing acid and base
• Digestion of food.
• Cooking an egg.
• Burning wood.

■---■