2008F_chem_125_exam_1_11x0xx3

2008F_chem_125_exam_1_11x0xx3 - Chem 125 Exam #1 Fall 2008...

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Chem 125 Exam #1 Fall 2008 PART A. (4 Points each) 1. What is the correct formula of lithium phosphate? a. LiP b. Li 2 PO 4 c. Li 3 PO 4 d. Li(PO 4 ) 2 e. Li 2 PO 3 2. What is the correct name of SF 2 ? a. Sulfur difluoride b. Sulfur fluoride c. Sulfur (II) fluoride d. Sulfur (I) fluoride e. none of the above 3. What is the correct formula for zinc hydrogen phosphate? a. ZnHP 2 b. ZnHPO 4 c. Zn 3 HPO 4 d. Zn 2 (HPO 4 ) 3 e. Zn(HPO 4 ) 3 4. If the following equation were balanced using the smallest possible integral coefficients, what would be the coefficient for water? C 2 H 3 OH(l) + O 2 (g) CO 2 (g) + H 2 0(l) a. 2 b. 3 c. 4 d. 5 e. 6
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Chem 125 Exam #1 Fall 2008 5. What is the oxidation state of arsenic in H 2 AsO 4 - ? a. 1+ b. 2+ c. 3+ d. 5+ e. 7+ 6. When the storm rolled in, the temperature dropped from 75ºF to 25ºF in 4.00 hours. What was the average rate of change of temperature in ºC/day? a. -130 b. -170 c. -200 d. +200 e. none of the above 7. Three students, each using his own balance, weighed the same iron ore sample. The masses they obtained were 123.4g, 120.5g, and 128.0g? What is the standard deviation? a.
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2008F_chem_125_exam_1_11x0xx3 - Chem 125 Exam #1 Fall 2008...

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