what is a chemical change or physical change?
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A chemical change is in which a new substance is formed
A physical change is in which no new substance is formed
A physical change is in which no new substance is formed
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Chemical energy
Chemical Energy is released when bonds form in a chemical reaction, often producing heat as a by-product (exothermic reaction).
There are two important terms to know in the study of chemical energy.
1. Exoergic: An exothermic (exoergic) nuclear reaction is a reaction that releases energy when chemical bonds form.
2. Endoergic: an endothermic (or endoergic) reaction is one that requires an input of energy to take place. Note that energy is often needed to break up bonds before forming new bonds. Example: during photosynthesis, energy from the sun is needed/used to break the CO2 and H2O bonds. Glucose is produced and O2 bond is formed as a result.
Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy. Usually, once chemical energy is released from a substance, that substance is transformed into an entirely new substance.
For example, when an explosive goes off, chemical energy stored in it is transferred to the surroundings as thermal energy, sound energy and kinetic energy
Chemical Energy is released when bonds form in a chemical reaction, often producing heat as a by-product (exothermic reaction).
There are two important terms to know in the study of chemical energy.
1. Exoergic: An exothermic (exoergic) nuclear reaction is a reaction that releases energy when chemical bonds form.
2. Endoergic: an endothermic (or endoergic) reaction is one that requires an input of energy to take place. Note that energy is often needed to break up bonds before forming new bonds. Example: during photosynthesis, energy from the sun is needed/used to break the CO2 and H2O bonds. Glucose is produced and O2 bond is formed as a result.
Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy. Usually, once chemical energy is released from a substance, that substance is transformed into an entirely new substance.
For example, when an explosive goes off, chemical energy stored in it is transferred to the surroundings as thermal energy, sound energy and kinetic energy
Amanbahubali:
sorry for chemical change
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