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Questions and Answers
What type of change does melting or evaporating represent?
What type of change does melting or evaporating represent?
- Chemical change
- Reversible change
- Endothermic change
- Physical change (correct)
What is the primary characteristic of chemical change?
What is the primary characteristic of chemical change?
- Production of mixtures
- Absence of energy changes
- Reversible nature of the change
- Formation of new chemical products with different properties (correct)
What is the majority of chemical reactions in terms of energy changes?
What is the majority of chemical reactions in terms of energy changes?
- Endothermic
- Reversible
- Exothermic (correct)
- Irreversible
How does an increase in the concentration of a solution affect the rate of reaction?
How does an increase in the concentration of a solution affect the rate of reaction?
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What is the primary factor influencing the rate of reaction?
What is the primary factor influencing the rate of reaction?
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