Why is frying an egg an example of a chemical change

2 answers:

8 0

A Chemical change is any form of chemical reaction changing the state of the matter involved. When you fry an egg, you are making a reaction between the heat and the chemicals that make up the egg. Therefore once you have fried that egg, you have completed a chemical reaction. This is why it's a chemical change when you fry an egg.

Yanka [14]3 years ago

3 0

A chemical change changes the substance itself. That means that you cannot go back to the original substance that you had before. A chemical change breaks or forms new bonds.

When you fry an egg, you cant change it back to its liquid form. Now the egg looks different than it was before you fried it. And also, you cannot change it back to how it looked.

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The 1H NMR spectrum of an unknown acid has the following peaks: δ (ppm) = 12.71 (1H, s), 8.04 (2H, d), 7.30 (2H, d), 2.41 (3H, s

vlabodo [156]

Answer:

The most appropriate structure given the sparse spectral data is 4-acetyl benzoic acid (see attached).

Explanation:

It is difficult to accurately elucidate the structure of this compound without its chemical formula. But from the 1H NMR spectral data shows a total of 8 hydrogen atoms:

12.71 (1H. s) - confirms presence of carboxylic acid proton, C=O-OH
8.04 (2H, d) - confirms aromatic hydrogen
7.30 (2H, d) - confirms aromatic hydrogen
2.41 (3H,s) - confirms C=C hydrogen or ketone O=C-RCH3

The attached files show the structure and the neighboring hydrogen atoms.

The most likely structure i 4-acetyl benzoic acid

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Answer:

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