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Interpretation: Whether a
Concept Introduction: The properties of the substance that are observed due to change in the chemical composition of the substance is said to be the chemical change. The evidences for the chemical changes are:
- Change in color.
- Formation of precipitation.
- Evolution or absorption of heat.
- Change in odor.
- Formation of bubbles.
Answer to Problem 3RQ
The chemical reaction has taken place in the given process.
Explanation of Solution
The given process indicates the burning of wick of the candle that results in the evolution of heat and light. Hence, the chemical reaction has taken place in the given process
Interpretation: Whether a chemical reaction has taken place in the following process or not should be determined:
Concept Introduction: The properties of the substance that are observed due to change in the chemical composition of the substance is said to be the chemical change. The evidences for the chemical changes are:
- Change in color.
- Formation of precipitation.
- Evolution or absorption of heat.
- Change in odor.
- Formation of bubbles.
Answer to Problem 3RQ
The chemical reaction has taken place in the given process.
Explanation of Solution
The given process indicates the burning of matchstick that results in the evolution of heat and light. Hence, the chemical reaction has taken place in the given process
Interpretation: Whether a chemical reaction has taken place in the following process or not should be determined:
Concept Introduction: The properties of the substance that are observed due to change in the chemical composition of the substance is said to be the chemical change. The evidences for the chemical changes are:
- Change in color.
- Formation of precipitation.
- Evolution or absorption of heat.
- Change in odor.
- Formation of bubbles.
Answer to Problem 3RQ
The chemical reaction has taken place in the given process.
Explanation of Solution
The given process indicates the dropping of a tablet in water. When a tablet comes in contact to water it results in the formation of bubbles. Hence, the chemical reaction has taken place in the given process.
Interpretation: Whether a chemical reaction has taken place in the following process or not should be determined:
Concept Introduction: The properties of the substance that are observed due to change in the chemical composition of the substance is said to be the chemical change. The evidences for the chemical changes are:
- Change in color.
- Formation of precipitation.
- Evolution or absorption of heat.
- Change in odor.
- Formation of bubbles.
Answer to Problem 3RQ
The chemical reaction has taken place in the given process.
Explanation of Solution
The given process indicates the brown color on the apple. The formation of brown color on the cut cells of apple takes place on the exposure of air. Hence, the chemical reaction has taken place in the given process.
Chapter 7 Solutions
World of Chemistry
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- Identify the Functional Groups (FG) in the following molecules. Classify C atoms as tertiary, 30, or quaternary 40. Identify secondary 20 and tertiary, 30 hydrogen atoms. Please provide steps to undertand each labeling.arrow_forwardIdentify the Functional Groups (FG) in the following molecules. Classify C atoms as tertiary, 30, or quaternary 40. Identify secondary 20 and tertiary, 30 hydrogen atoms. Please provide steps to undertand each labeling.arrow_forwardA certain chemical reaction releases 24.7 kJ/g of heat for each gram of reactant consumed. How can you calculate what mass of reactant will produce 1460. J of heat? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. mass M 0.0 x μ 00 1 Garrow_forward
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