what is science
what is chemical change
what is physical change
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knowledge about the natural world that is based on facts learned through experiments and observation. 2 : an area of study that deals with the natural world (as biology or physics) 3 : a subject that is formally studied. the science of linguisticschemical change. ... a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemicalproperties or composition, resulting in the formation of at least one new substance: The formation of rust on iron is a chemical change
AasthaKashyap01:
Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changesare used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds
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Science - Science is the study of the nature and behaviour of natural things
Chemical Change - a change whuch is usually irreversible chemical reaction, involving the rearrangement of the atoms of one or more substances and a change in their chemical properties orcomposition, resulting in the formation of at least one new substance.
e.g. - The formation of rust on iron
Physical Change - a change which is usually reversible change in the physical properties of a substance, as size or shape.
e.g. - Freezing a liquid
Chemical Change - a change whuch is usually irreversible chemical reaction, involving the rearrangement of the atoms of one or more substances and a change in their chemical properties orcomposition, resulting in the formation of at least one new substance.
e.g. - The formation of rust on iron
Physical Change - a change which is usually reversible change in the physical properties of a substance, as size or shape.
e.g. - Freezing a liquid
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