CHEM 112 Study Guide - Midterm Guide: Polyatomic Ion, Chemical Equation, Unified Atomic Mass Unit
Document Summary
Oct 24th, 2009, 10:00 am 12:00 noon) (version a) Instructions - please read this first: this is a closed-book examination. A data-sheet with a periodic table can be found as the last page of this examination paper: simple scientific calculators (maximum two-line display) are permitted; graphing calculators, pda"s, electronic dictionaries, etc. are not. No equations should be stored in memory: this examination paper has 10 pages. Each of the 40 questions will be weighted with 2. 5 marks. You should spend on average 3 min. on each question. No deductions will be made for incorrect answers. Multiple answers will be treated as no answer; if you change your mind, erase carefully. 1: state the answer to the following question using the proper number of significant figures. Assume that all these numbers represent results of experimental measurements (they are not exact numbers) and all are written with correct number of significant figures.
