Give two-two example of physical and chemical change.
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Ice melting involves a change from a solid to a liquid and the substances maintain the properties of water because the molecules never change. 2. Water boiling is a physical change as water molecules vibrate faster, they enter the gas phase and become water vapor.
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Where is chemical change
A chemical change (chemical reaction) is a change of materials into other, new materials with different properties, and one or more new substances are formed. Burning of wood is a chemical change as new substances which cannot be changed back (j.g. carbon dioxide) are formed.
ho gya ab chemical change
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