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viktelen [127]
3 years ago
5

Why are chemical changes considered “unseen”?

Physics
2 answers:
jeka57 [31]3 years ago
7 0
<span>Because they occur at an atomic level, changing the actual structure of the thing.

</span>
irinina [24]3 years ago
4 0
Chemical changes are usually considered unseen because it changes the chemical form of the atom, by breaking or forming new bonds.
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2 years ago
A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 3.84 m/s
JulijaS [17]

Answer:

the train is moving at the speed of v = 1.79 m/s

Explanation:

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angle of the rain drop = 25°                      

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3 0
3 years ago
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Paul [167]

Answer:

Outer Shell

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