HW 1 - CHE-105 Exploring Chemistry Chapter 1 Homework Name...

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Chapter 1 Homework Name _______Kyle Alvis ______ 1. Classify each as element (e), compound (c), homogeneous (hm) or heterogeneous (ht) mixture. a. pure water _C_ b. air _Hm c. argon _E_ d. carbon dioxide _C _ e. lemonade _Ht f. concrete _Hm g. brass _E _ 2. Classify each of the following as atom (a) or molecule (m). a. nitrogen _M __ b. oxygen _M __ c. argon _A __ d. water _M _ e. carbon monoxide _M _ 3. Which elements belong in the same family as neon? _ _ a. hydrogen b. helium c. nitrogen d. radon e. carbon 4. Which elements belong to the same period? _A __ a. He, Ne and Xe b. K, Cr, Br c. Mg, Ca, Zn d. Al, Ge, Ga e. both b and c 5. Give the proper name for the following substances. a. KCl __Potassium monochloride __________ b. CS 2 __Carbon Disulfide ________________ c. CaCl 2 __Calcium Dichloride ______________ d. N 2 O 3 __Dinitrogen trioxide _______________ e. Pb __Lead __________________________ 6. What are the four most prevalent components of dry air? a.
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HW 1 - CHE-105 Exploring Chemistry Chapter 1 Homework Name...

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