Multiple Choice
Which atom in a chlorofluorocarbon (CFC) molecule directly contributes to the destruction of ozone molecules in the stratosphere?
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1. Intro to General Chemistry
Chemical Properties
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Which statement best describes a substance with high reactivity?
A
It conducts electricity well due to the presence of free electrons.
B
It has a high melting point and resists changes in temperature.
C
It readily undergoes chemical changes when exposed to other substances.
D
It is insoluble in most solvents and does not form new compounds easily.
Verified step by step guidance1
Understand the concept of reactivity: Reactivity refers to how readily a substance undergoes chemical changes or reactions when it comes into contact with other substances.
Analyze each statement in terms of chemical reactivity:
- Conducting electricity well due to free electrons relates more to electrical conductivity, not directly to chemical reactivity.
- Having a high melting point and resisting temperature changes describes physical properties, not chemical reactivity.
- Being insoluble and not forming new compounds easily suggests low reactivity, the opposite of high reactivity.
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