Any chemical reaction produce a new substance.
burning a piece of wood
a chemical reaction
The change were new material is produce is called chemical change.
compound
Chemical energy and wind
This is a physical change. Water can take on 3 forms, ice, gas, and liquid. These would be changes in state. Tearing, scratching, crushing, change in state, are all physical changes. Chemical changes must change the substance, not just the appearance. (i.e. Burning fire into ashes, fireworks exploding...)
It depends upon nature of substances for example when Glucose or Salt are dissolved in water no new substance is formed so these are physical changes but when Ammonia gas is dissolved in water Ammonium and hydroxide ions are formed so it is a chemical change.
Chemical change forms a new substance from another substance.
when a substance undergoes a chemical change the original form cannot be recognized and it could get total new properties.
The change were new material is produce is called chemical change.
compound
An allomorph is a variant form of a morpheme, which is the smallest unit of meaning. Allomorphs can vary in pronunciation or spelling but carry the same meaning or function. For example, the plural morpheme in English can be realized as /s/, /z/, or /ÉĒz/ in words like cats, dogs, and horses.
A physical change is reversible and does not affect the composition of a substance. On the other hand, chemical change is irreversible and permanent. A substance undergoing a chemical change forms a new substance which has different composition than the original substance.
Produt!(:
Product
The substance is a compound, which forms chemical bonds that cannot be physically separated, but only by a chemical change.
is a substance that forms as a result of a biological- or chemical reaction
The substance formed in a chemical change is called Product.
chemical change.