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Chemical Reaction
- Process that occurs when a substance or substances react to form a different substance or substances
- Always involve the production of new substances with their own physical and chemical properties
- Energy is always absorbed or released during a chemical reaction
- Recognizing Chemical Reactions
- All reactions involve the production of new substances with their own characteristic properties.
- These properties include: State at Room Temperature, melting point, color, and density.
- These properties include: State at Room Temperature, melting point, color, and density.
- All reactions involve the flow of energy. This may be detected by a change in temperature.
- Many reactions cause a phase change.
- E.g. the formation of a gas (bubbles) or of a solid that appears as a
cloudiness in a previously clear solution.
- E.g. the formation of a gas (bubbles) or of a solid that appears as a
cloudiness in a previously clear solution.
- All reactions involve the production of new substances with their own characteristic properties.
- Recognizing Chemical Reactions
- Energy is always absorbed or released during a chemical reaction
- Always involve the production of new substances with their own physical and chemical properties
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