alicja37 alicja37

06-06-2024
Chemistry

Answered

Which of these observations shows a chemical reaction is happening
OA temperature change
Melting
Boiling
O Condensing
A chocolate barr

Answer :

GinnyAnswer GinnyAnswer

06-06-2024

Final answer:

Chemical changes are characterized by temperature changes, light emission, color alterations, and bubble formation.

Explanation:

Chemical changes can be identified through various observations. Temperature changes (increase or decrease), light given off, unexpected color changes, and formation of bubbles are indications of a chemical reaction. For example, when iron reacts with oxygen to form rust, a color change occurs, indicating a chemical change.

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