3/26/2017 10:55 PM CA 2/10 Grad Print Calculator Periodic Table Question 2 of 10
ID: 501543 • Letter: 3
Question
3/26/2017 10:55 PM CA 2/10 Grad Print Calculator Periodic Table Question 2 of 10 Sapling Learning Mapot Sort the observed changes, indicating whether or not they may be evidence that a chemical reaction is occuring. May be evidence of a chemical No chemical reaction (Changes in color change in temperature Explosion or fire A solution color becoming less intense A sold liquifying due to dilution Precipitation Bubbles (gas formation) Solution colors mixing A Previous Give up & View Solution Check Answer Next a Exit -L e Hint about us careers partners privacy policy terms of use contact usExplanation / Answer
1. Changes in color - indicates a chemical reaction occurring
2.Chang ein temperature - chemical change
3) fire or explosion - chemical change
4)The color becoming less intense due to dilution - a physical change NOt a chemical change
5) A solid liquefying - physical change NOT chemical
6) precipitation - chemical change
7) BuBBles or gas evolution - chemical change.
8)colors of solutions mixing. physical change.
During a chamical reaction , the colors of solutions change, gases may evolve, precipitation of compounds occurs.
the contents of reaction flask get heated up, some reactants /products may catch fireor expolode.
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