4. Determine if a chemical reaction occurs in the following scenarios: A. A girl cuts a piece of paper. B. A man uses chemicals to remove rust from metal. C. A boy dissolves salt in water. D. A teacher burns wood. E. A plant converts water and carbon dioxide into sugar and oxygen.

4. Determine if a chemical reaction occurs in the following scenarios: A. A girl cuts a piece of paper. B. A man uses chemicals to remove rust from metal. C. A boy dissolves salt in water. D. A teacher burns wood. E. A plant converts water and carbon dioxide into sugar and oxygen.

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter9: Energy For Today

Section: Chapter Questions

Problem 49E: Calculate the amount of carbon dioxide (in kg) emitted into the atmosphere by the complete...

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Concept explainers

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.

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Determine if a chemical reaction occurs in the following scenarios:
A. A girl cuts a piece of paper.
4.
B. A man uses chemicals to remove rust from metal.
C. A boy dissolves salt in water.
D.
A teacher burns wood.
E. A plant converts water and carbon dioxide into sugar and oxygen.
ANotes

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