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Mnenie [13.5K]
3 years ago
7

Hannah does an experiment. She has two colorless chemicals that she mixes together in a beaker. Which of the following indicates

that a chemical change occurs when she mixes the two chemicals together?
I. The chemicals change color from colorless to purple.
II. A yellow gas forms.
III. A brown solid forms in the bottom of the beaker.
IV. The temperature of the chemicals rises 15°C.
Chemistry
2 answers:
uranmaximum [27]3 years ago
8 0
I am not to sure but is it all 4 of them?
alexandr402 [8]3 years ago
6 0

The answer is all 4 of them


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