Write a description of how you know a chemical reaction is occurring.
A chemical reaction can be identified by the formation of new substances with different properties. Common signs that a reaction is occurring include a change in color, the production of a gas (bubbles), the formation of a solid precipitate, or a change in energy such as the release or absorption of heat or light.
Sample Response: Chemical reactions involve the chemical interaction of two or more chemical substances, result in a new substance being formed, and are usually irreversible. The signs of chemical reactions include gas formation, energy release in the form of light or flame, heat absorption, precipitate formation, and color change. Which did you include in your response? Check all that apply.Chemical reactions involve two or more chemical substances.Chemical reactions result in new substance for
exothermicendothermicneither
exothermicendothermicneither
Identify the chemical reactions as endothermic, exothermic, or neither.
exothermicendothermicneither
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