CHEM 1201 : 2009 Exam Chemistry Exam 1
Document Summary
Encode your answers on the scantron sheet with soft pencil. A periodic table and all necessary constants are provided on the last page. At the end of the exam, turn in the scantron to one of the exam proctors. The fact that potassium vigorously reacts with water to produce potassium hydroxide solution and hydrogen gas is a: physical property, homogeneous property, isotopic behavior, chemical property, heterogeneous property. When expressed to three significant digits and in scientific notation, it becomes: 20 100, 19. 8 100, 2. 00 101, 1. 99 101, 1. 98 101. A glass fragment had a mass of 4. 652 g. when the glass fragment was placed into a graduated cylinder with 20. 00 ml of water, the water level rose to 21. 53 ml. What is the density of the glass fragment: 0. 335 g/ml, 2. 98 g/ml, 3. 04 g/ml, 7. 12 g/ml, 6. 98 g/ml. L: 1. 2 10 9, 1. 2 10 6, 1. 2 10 3, 1. 2 103, 1. 2 106.
