Hinds Community College - CHEM IDKPractice_Exam_1_General_Chemistry_1

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Indicate whether the statement is true or false. 1. A family of elements with similar chemical properties that lie in the same vertical column on the periodic table is called a group. Is this statem... ent true or false? a. True b. False 2. True or false? Hydrogen has four naturally occurring isotopes. a. True b. False 3. True or false? An element consists of only single atoms of that element. a. True b. False 4. True or false? Juice freezing into a popsicle is an example of a physical change. a. True b. False 5. True or false? The normal boiling point of water is 100oC, which is a physical property of the substance water. a. True b. False 6. True or false? A solid substance is not considered matter. a. True b. False 7. True or false? Mendeleev is credited with the modern atomic theory of atoms. a. True b. False 8. 15N and 15O are isotopes. Is this statement true or false? a. True b. False 9. A quantitative observation is called a measurement. Is this statement true or false? a. True b. False 10. True or false? In naming ionic compounds, the cation is always named first and the anion second. a. True b. False [Show More]

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