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steve6's avatar

Wouldn't an electron exchange in a chemical reaction be considered a physical change?

Asked by steve6 (2559points) November 28th, 2008

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9 Answers

asmonet's avatar

Do your own homework. Seriously.

Harp's avatar

um, looking at steve’s picture, I don’t really think this is a homework Q

asmonet's avatar

Could be his kid’s.

Harp's avatar

OK steve, tell your kid that yes, what we call chemical changes are indeed also physical changes. What we call physical changes might better be described as only physical changes, wherein no molecular transformation occurs.

mea05key's avatar

you mean during ionic bonding where electron(s) move from one atom to the other? that is obviously a chemical reaction because a new product is formed. You can say that it is a physicaly change also because there might be change in the color substance, change in the state, etc.

bostonbeliever's avatar

that’s kind of basic chem…
it’s not considered physical because no physical change happens to the compound or element or whatever it is. if an atom of gold loses an electron, it’s still gold, just an ion. it looks the same, feels the same, etc.

mea05key's avatar

@bostonbeliver

Cu+ – Brown?
Cu2+ – Blue?
Cu3+ -Green?

Copper with different charges due to oxidation have different color. I cant remmeber the exact color but physically copper can undergo physical change as well as chemical change.

Beans4life's avatar

Because a physical change is when something has just been mixed around. Like a smoothie or a salad a chemical change is when the electrons change and become something totally different like H(Hydrogen)+O(Oxygen)=H20. There has to be two Hydrogen particles because the Valence value of O= -2 and the electrons have to zero out in order to become something new. or like Iron Oxide (Rust) same concept O= -2 Fe(Iron)= +2 so rust would be (FeO)

steve6's avatar

Orbitals are in physics. So is electron exchange. Wouldn’t this constitute physical change?

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