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Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change. Or Light is given off, a permanent color change occurs, gas is given off, heat is given off, and a precipitate is formed
Answer:explain why 2,2-dichloro-3-methylbutane has structure isomer of 2, 2 dichloropentane. Although there are 12 hydrogen atoms in the molecule, there only 4 possible 1H chemical environments for the hydrogen atoms in 2-methylbutane molecule.
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I have solved your problem
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Oh this is extremely hard...i might just die lol jk its the last one measuring cylinder :)