2 years ago

BRAINLIESTTT ASAP!!! PLEASE ANSWER!

2 answers:

7 0

Physical characteristics include change in shape, size, texture, color, smell, density, boiling/melting point, solubility, etc., so any change with those properties would be proof of a physical reaction.

sladkih [1.3K]2 years ago

4 0

If the item or substance has changed into a state where you are able to change it back such as:

Water melting

Water freezing

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What is the change of energy where the wavelength is 4078 A

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<h3>Further explanation</h3>

Radiation energy is absorbed by photons

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$\large{\boxed{\bold{E\:=\:h\:.\:f}}}$

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