Entry Exam Category: Graduate & Professional Program Admission Exams
Course: Praxis
Exam: Praxis Elementary Science 5005 Practice Test
Practice Question
Which of the following is a true statement about sodium chloride (NaCl)?
Answer Choices
- A: It is a gas at room temperature.
- B: It is a compound formed from two elements.
- C: It is a mixture formed from two different compounds.
- D: It is an element that is unstable and reactive.
Correct Answer: B
Rationale: NaCl compound from Na, Cl elements. A: Solid. C: Not mixture. D: Stable compound. Elements combine to compounds.