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Explain the difference between physical and chemical changes of matter mentioned in the text.
Explain the difference between physical and chemical changes of matter mentioned in the text.
Physical changes of matter refer to changes in the appearance or state of a substance without changing its chemical composition, while chemical changes involve the formation of new substances with different chemical properties.
Define what is meant by a chemical reaction as per the text.
Define what is meant by a chemical reaction as per the text.
A chemical reaction is defined as a process in which the nature and identity of the initial substance changes, resulting in the formation of new substances. This occurs when a chemical change takes place.
How can one determine if a chemical reaction has taken place, according to the text?
How can one determine if a chemical reaction has taken place, according to the text?
A chemical reaction can be determined by observing changes in the nature and identity of the initial substance, indicating that a chemical change has occurred. This may involve changes in physical appearance, chemical properties, or both.
Provide examples of daily life situations where chemical reactions occur, as mentioned in the text.
Provide examples of daily life situations where chemical reactions occur, as mentioned in the text.
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What is the purpose of Activity 1.1 mentioned in the text, and why does it require the teacher’s assistance?
What is the purpose of Activity 1.1 mentioned in the text, and why does it require the teacher’s assistance?
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