CHEM 133 Midterm Exam (American Millitary University)

Thanks for your submission. Please carefully review the questions you got wrong and let me know what still puzzles you so I can help explain it. Part 1 of 11 - 0.0/ 0.0 Points No Questions Part 2 of 11 - Multiple Choice - Chapter 01 8.0/ 10.0 Points Question 1 of 35 2.0/ 2.0 Points A piece of antimony with a mass of 17.41 g is submerged in 46.3 cm3 of water in a graduated cylinder. The water level increases to 48.9 cm3 . The correct value for the density of antimony from these data is:  A. 0.356 g/cm3  B. 6.7 g/cm3  C. 2.81 g/cm3  D. 6.697 g/cm3  E. 0.15 g/cm3 Feedback: See Chapter 01 Question 2 of 35 0.0/ 2.0 Points Using the arithmetic problem below, determine the correct number of significant figures: (1.5 × 10–4 × 61.3) + 2.01 =  A. 2.0192  B. 2.019  C. 2.0  D. 2.02  E. 2.019195 Feedback:See Chapter 01 Question 3 of 35 2.0/ 2.0 Points How many square kilometers are equivalent to 28.5 cm2?  A. 2.85 × 10–6 km2  B. 2.85 × 10–4 km2  C. 285 km2