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Questions and Answers
Which of the following is NOT a characteristic of a chemical element?
Which of the following is NOT a characteristic of a chemical element?
- It can be broken down into simpler substances (correct)
- It has a unique atomic number
- It cannot be changed into a different element by chemical reactions
- It consists of only one type of atom
What is the basic unit of a chemical compound?
What is the basic unit of a chemical compound?
- Ion
- Element
- Molecule (correct)
- Atom
What is the process by which a liquid changes into a gas at a temperature below its boiling point?
What is the process by which a liquid changes into a gas at a temperature below its boiling point?
- Condensation
- Vaporization
- Boiling
- Evaporation (correct)
