water boiling
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.
They are all oxidation. Burning is much faster than the other two and releases large quantities of heat. Rusting and tarnishing are much slower. Tarnishing typically shows a change in color and very little in the way of physical change. Rusting slowly eats away the material as it combines with the oxygen.
Burning, rusting, tarnishing, and bubbling are all chemical processes that indicate changes in materials. Burning is a rapid oxidation reaction that produces heat and light. Rusting is the corrosion of iron, resulting from its reaction with oxygen and moisture, forming iron oxide. Tarnishing involves the oxidation of metals like silver, leading to a dull appearance, while bubbling typically indicates a gas being released during a chemical reaction, such as when acid reacts with a carbonate.
melting any metal is physical. rusting iron is chemical
Melting! A physical change would be to change something from Solid <--> Liquid <--> Gas
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.
They are all oxidation. Burning is much faster than the other two and releases large quantities of heat. Rusting and tarnishing are much slower. Tarnishing typically shows a change in color and very little in the way of physical change. Rusting slowly eats away the material as it combines with the oxygen.
Boiling of water
The process described involves a chemical change. Boiling is a physical change as it involves a substance changing state from liquid to gas. Rusting, fermenting, and burning are chemical changes as they involve rearrangement of atoms in the substances leading to new chemical properties.
They are all oxidation. Burning is much faster than the other two and releases large quantities of heat. Rusting and tarnishing are much slower. Tarnishing typically shows a change in color and very little in the way of physical change. Rusting slowly eats away the material as it combines with the oxygen.
Physical - Breaking of glass Boiling of water Melting of ice Cutting of vegetables Chemical - Burning of paper Cooking of food Rusting of iron Souring milk
Boiling does not involve a chemical change in property. Boiling is a physical change in which a substance changes from a liquid to a gas without changing its chemical composition. The other options (rusting, burning, fermenting) involve chemical reactions that result in changes to the chemical composition of the substances involved.
melting any metal is physical. rusting iron is chemical
Melting! A physical change would be to change something from Solid <--> Liquid <--> Gas
cheeseballs!
Water boiling is a physical process; also dissolving. Rusting is a chemical process (oxidation).
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