kaiya2022547
28.12.2019 •
Chemistry
S8p1e. which set of procedures and observations indicates a chemical change?
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Ответ:
(4). Option 4 seems to be the one undergoing a chemical change because there is a formation gas from the bubbling that occurs. Chemical change is the change that results to the formation of a new substance. The other options given are examples of physical change.
Ответ:
All the others are examples of people doing stuff to the water, C is an example of the water moving something, in this case the water is moving a surfer and his surf board.