Answer:
The chemical change in matter is results in a change in its identity and properties.
Explanation:
There are toe type of changes physical change and chemical change.
The chemical change change in matter lead to lost its identity and properties.
Chemical change:
The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.
These changes are irreversible
These changes occur due to chemical reactions
These may not be observed with naked eye
Example:
Combustion of fuel or wood: that oil or wood convert into energy, CO2 and ash in case of wood
Boiling of egg: that change the chemical composition of protein in the egg .
The reaction of Hydrogen and oxygen:
H 2 (g) + O 2 (g) -------------------------------------> 2H 2O (l)
The ozone layer absorbs radiation from the sun, helping to increase the temperature in the upper portion of the stratoshpere
Answer:
Número de moles de cloro en número de moles de NaCl
Explanation:
espero que si sea la correcta
It’s tooo barely I cannot see it
A: sublimation
B: condensation
C: melting
Explanation:
When in a solid between the molecules we have only weak forces the solid may undergo a face transition end by increasing temperature it will transform in a gas without going through the liquid state. This is sublimation.
When we drop the temperature of a gas between a certain limit were the forces between the molecules are no longer inhibited so they will stick together in a liquid form. This is condensation.
When a solid is transformed in a liquid, the temperature is high enough to overcome interactions between the particles so the molecules will gain a degree of freedom. This is melting.
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