melting any metal is physical. rusting iron is chemical
Melting is an example of a physical change because it does not change the chemical composition of the substance undergoing the change. Tarnishing, rusting, and burning are examples of chemical change because they are caused by chemical reactions, which change the chemical composition of the substances undergoing the change.
A space shuttle blasting; fireworks exploding; an iron nail rusting; leaves changing color; a campfire burning.
Irreversible examples: Burning a piece of paper, baking a cake, digesting food, rusting of iron, breaking a glass. Reversible examples: Melting ice into water, boiling water into steam, freezing water into ice, dissolving sugar in water, compressing a gas into a liquid.
Burning candles and the rusting of nails are examples of chemical changes owing to the fact that there are chemical reactions occurring and new chemical compounds are being formed as the reaction continues.When a candle burns, the wax and wick of the candle are undergoing combustion and (ideally) being chemically changed into carbon dioxide and water, which are two completely new chemical substances than were present in the candle. In the case of the nail, iron in the steel alloy from which the nail is made is combining with oxygen to form a chemical compound not present in the nail, namely iron oxide.
Both are examples of oxidation.
Fire Burning,Iron Rusting
Both rusting and burning are forms of oxidation reactions. In both processes, a material combines with oxygen to form new compounds. Rusting typically involves the corrosion of metals, while burning is the combustion of organic materials, resulting in the release of heat and light.
melting any metal is physical. rusting iron is chemical
1.burning a piece of paper 2.water evaporation 3.milk goes sour 4.match is lit 5.rusting of screws
Examples of redox reactions among the given options are: Rusting of a car Burning propane The banana turning brown and mixing sodium hydroxide with hydrochloric acid to form table salt and water do not involve redox reactions.
Burning, rusting, and production of gas are examples of chemical changes.
Melting is an example of a physical change because it does not change the chemical composition of the substance undergoing the change. Tarnishing, rusting, and burning are examples of chemical change because they are caused by chemical reactions, which change the chemical composition of the substances undergoing the change.
rusting, burning, polymerizing,
A space shuttle blasting; fireworks exploding; an iron nail rusting; leaves changing color; a campfire burning.
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Examples are:- burning of fuel in a car- cooking in a microwave oven- washing with soaps or detergents- rusting of iron objects- degradation of some plastics and rubbers