The english translation of the question is:
Paraffin combustion is a chemical change?
Answer:
Yes
Explanation:
The chemical change is defined as the change in chemical composition of substance while physical change is defined as the change in physical appearance which can return to original shape again.
The combustion of paraffin is a chemical change because during combustion the chemical structure of the paraffin has been changed.
Hence, the given statement is true.
The sun? if not, then i have no idea. ahahaha
Answer:
A wave character exhibited by all particles
Explanation:
The central idea in quantum mechanics is the paradox of wave-particle duality. In quantum mechanics, all particles are believed to also exhibit wavelike characters.
The electron is assumed to behave as a wave hence its position can not be precisely determined according the Heisenberg's uncertainty principle.
These are the underlying postulates that informed Erwin Schrödinger's wave mechanical model of the atom.
Hence, the basic postulate of quantum mechanics is that a wave character is exhibited by all particles.
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