Certainly! Below is a transcription of the table suitable for an educational website: --- **Exploring Physical and Chemical Changes** The table outlines various procedures and their observed changes, determining whether each change is physical or chemical and providing evidence for the classification. | Procedure | Observations before and after change | Chemical Change? Physical Change? | Evidence for the choice of change | |---------------------------------------|----------------------------------------|-----------------------------------|-------------------------------------| | Luminol + sodium perborate + CuSO₄ | Blue glow → gets less bright | Chemical change | Chemical change | | I₂ (s) + Heat | Solid → vapor; turns purple | Chemical change | Chemical change | | CaCl₂ (aq) + Na₂CO₃ (aq) | Colorless → white; no longer transparent| Physical change | Physical change | | Na₂S₂O₃ (s) + HCl (aq) | Solid → liquid; rapid bubbles | Chemical change | Presence of bubbles | | Na₂CO₃ (s) + HCl (aq) | White bubbles | Chemical change | Presence of bubbles | | CuSO₄ (s) + H₂O (l) | White → blue solid | Physical change | Water removal | | CuSO₄ · 5H₂O (s) + Heat | Blue → white; H₂O is removed | Chemical change | Bond breaking | This table is designed to help identify whether a process involves a physical or chemical change and the rationale behind each determination.
Certainly! Below is a transcription of the table suitable for an educational website: --- **Exploring Physical and Chemical Changes** The table outlines various procedures and their observed changes, determining whether each change is physical or chemical and providing evidence for the classification. | Procedure | Observations before and after change | Chemical Change? Physical Change? | Evidence for the choice of change | |---------------------------------------|----------------------------------------|-----------------------------------|-------------------------------------| | Luminol + sodium perborate + CuSO₄ | Blue glow → gets less bright | Chemical change | Chemical change | | I₂ (s) + Heat | Solid → vapor; turns purple | Chemical change | Chemical change | | CaCl₂ (aq) + Na₂CO₃ (aq) | Colorless → white; no longer transparent| Physical change | Physical change | | Na₂S₂O₃ (s) + HCl (aq) | Solid → liquid; rapid bubbles | Chemical change | Presence of bubbles | | Na₂CO₃ (s) + HCl (aq) | White bubbles | Chemical change | Presence of bubbles | | CuSO₄ (s) + H₂O (l) | White → blue solid | Physical change | Water removal | | CuSO₄ · 5H₂O (s) + Heat | Blue → white; H₂O is removed | Chemical change | Bond breaking | This table is designed to help identify whether a process involves a physical or chemical change and the rationale behind each determination.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Certainly! Below is a transcription of the table suitable for an educational website:
---
**Exploring Physical and Chemical Changes**
The table outlines various procedures and their observed changes, determining whether each change is physical or chemical and providing evidence for the classification.
| Procedure | Observations before and after change | Chemical Change? Physical Change? | Evidence for the choice of change |
|---------------------------------------|----------------------------------------|-----------------------------------|-------------------------------------|
| Luminol + sodium perborate + CuSO₄ | Blue glow → gets less bright | Chemical change | Chemical change |
| I₂ (s) + Heat | Solid → vapor; turns purple | Chemical change | Chemical change |
| CaCl₂ (aq) + Na₂CO₃ (aq) | Colorless → white; no longer transparent| Physical change | Physical change |
| Na₂S₂O₃ (s) + HCl (aq) | Solid → liquid; rapid bubbles | Chemical change | Presence of bubbles |
| Na₂CO₃ (s) + HCl (aq) | White bubbles | Chemical change | Presence of bubbles |
| CuSO₄ (s) + H₂O (l) | White → blue solid | Physical change | Water removal |
| CuSO₄ · 5H₂O (s) + Heat | Blue → white; H₂O is removed | Chemical change | Bond breaking |
This table is designed to help identify whether a process involves a physical or chemical change and the rationale behind each determination.
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