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Physical changes do not change the kind of matter or its properties. Ex. cut a piece of paper and you sill have paper.
Chemical changes cause the atoms to recombine and form new substances with different properties. Ex. burn wood, it isn't wood anymore, it is ash and smoke and heat energy. ASH wasn't there before burning.
What else can I help you with?
Is reactions a chemical or physical?
Reactions can be both chemical and physical. Chemical reactions involve breaking and forming chemical bonds leading to the formation of new substances. Physical reactions involve changes in state, shape, or form of a substance without changing its chemical composition.
Is a chemical change easier to reverse then a physical change?
No, chemical changes are typically more difficult to reverse than physical changes. Chemical reactions involve the creation of new substances with different chemical properties, making it challenging to reverse the reaction and return to the original substances. Physical changes, such as changes in state or shape, usually involve rearranging the same particles and are more easily reversible.
What are the factors classified as chemical and physical reaction?
Chemical reactions involve the formation of new substances with different chemical properties, such as rusting of iron. Physical reactions involve changes in the physical state or appearance of a substance without changing its chemical composition, like melting ice.
Good effects of physical and chemical change?
Physical changes include changes in state, size, shape, or appearance without altering the substance's chemical composition. Chemical changes involve formation of new substances with different chemical properties. Both types of changes can be used in industry for manufacturing products, such as refining metals through chemical reactions or changing the state of a substance to make it easier to transport.
Why do you think the sublimation of dry ice and expansion of gases are not chemical reactions?
The sublimation of dry ice and expansion of gases are not chemical reactions because the chemical composition of the substances involved remains the same before and after the process. In sublimation, dry ice changes from a solid to a gas without a change in its chemical structure. Expansion of gases occurs when gas particles spread out to fill the available space, but no new substances are formed. Both processes involve physical changes rather than chemical reactions.
Can chemical and physical changes be called chemical and physical reactions?
yes it can be called physical and chemical reaction
What reaction is in antacids chemical or physical?
Chemical reactions are of course chemical changes.
How else are nuclear reactions unlike chemical reactions?
In nuclear reactions the atom itself changes while molecules and/or structural organisation of atoms do in chemical and physical changes.
Are physical changes chemical reactions?
No, physical changes normally refer to changes other than chemical reactions. If you have a loaf of bread and cut it in half, that is a physical change but not a chemical change. If you eat the bread and digest it, that is a chemical change.
What chemical reactions are reversible?
All physical changes are reversible.
Is bleaching a sheet and pillowcase a chemical change or physical change?
These are chemical reactions (changes).
Is reactions a chemical or physical?
Reactions can be both chemical and physical. Chemical reactions involve breaking and forming chemical bonds leading to the formation of new substances. Physical reactions involve changes in state, shape, or form of a substance without changing its chemical composition.
Is the reaction reversible?
chemical reactions are irreversible but physical changes are reversible
Can a physical change become a chemical change?
A lot of chemical reactions are initiated by physical changes - specifically, heating something.
What are examples of chemical reaction?
Reactions that are not chemical reactions are physical reactions. These reactions involve a change in only the physical state of an element, not its chemical properties. Thus, physical changes include freezing, condensation, sublimation, hammering a metal into a sheet, cutting sodium metal, etc.
What happens with the sulfuric acid and is it a chemical change or physical change?
The chemical reactions of sulfuric acid are chemical changes.
Is electricity seperateing water into h2 and o2 a physical or chemical change?
This is a chemical change. Chemical reactions are chemical changes.
