Chemistry Final - True and False

Chemistry Final - True and False - Chemistry Final Exam:...

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Chemistry Final Exam: Concepts Part I: True and False 1. A property is any characteristic that gives a sample of matter its unique identity. 2. Sodium Chloride is an example of a pure substance. 3. During a chemical change, matter does not change its composition. 4. The SI temperature scale is the Celsius scale. 5. The precision of a measurement indicates how well a measurement agrees with the accepted or “true” value. 6. Atoms have a nucleus that contains protons and electrons. 7. The atomic number of an atom is the sum of the number of protons and neutrons. 8. The periodic table is an arrangement of the elements in order of increasing atomic mass. 9. A molecule that contains only two atoms is known as a monotonic molecule. 10. Molecules are usually represented by their molecular formulas, which give the actual numbers of each type of atom in the molecule. 11. Metals which tend to lose electrons become positively charged cations. 12. An alkane is a hydrocarbon molecule with a hydroxide group.
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Chemistry Final - True and False - Chemistry Final Exam:...

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