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Physical and chemical changes |
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Answer» what to do of this? please comment Physical changesinvolve smallchangesin energy and are easily reversible. Achemical changemay involve a decomposition or synthesisreaction. Duringchemical change, the mass and number of atoms is conserved, but the number of molecules is not always the same.Chemical reactionsinvolve largerchangesin energy. physical no substance formed and chemical new substances is formed physical changes only change the appearance of a substance , not it's chemical compositionchemical changes cause a substance to change into a entirely substance with a new chemical formula. chemical changes are also known as chemical reaction what will do in the question Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions Physical no substance formed and chemical new substances is formed physical change ÷ physical change is the change where new substance not formed is known as physical change.chemical change÷ chemical change formed new substance is known as chemical change Physical change=It is the change in which no new substance is formed. It is reversible. Chemical change=It is the change in which new substance is formed.It is irreversible. physical changes only change the appearance of a substance,not its chemical composition.chemical changes cause a substance to change into an entirely substance with a new chemical formula. chemical changes are also known as chemical reactions physical changes can goes continuously,like after change it can form it's first substance,like ice into water and water into ice,but in chemical change the first substance cannot formed physical change is reversible change where as chemical change is not reversible change. In physical change can be reversed no new substance is formed in physical change In chemical change cannot be reversed new substance is formed in chemical change |
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