Study Guide Exam 1 (Ch 1 & 2) PDF

Study Guide - Exam 1 (Ch 1 and 2) A periodic table, all formulas, standard conversion factors, and constants will be provided. You can use a 3 x 5 card (double sided), if you need any other information. Chapter1 (Homework 1, Extra Problems) Definitions to know: Matter, mass, weight, volume Ch1-1...

Study Guide - Exam 1 (Ch 1 and 2) A periodic table, all formulas, standard conversion factors, and constants will be provided. You can use a 3 x 5 card (double sided), if you need any other information. Chapter1 (Homework 1, Extra Problems) Definitions to know: Matter, mass, weight, volume Ch1-1 Notes (Matter-Measurements Class work) 1. Classification of matter according to physical states – know the general properties of solids, liquids and gases in the table in notes. 2. Classification of matter according to composition – Pure substances (elements and compounds) and mixtures (homogeneous and heterogeneous). Categorize / identify a given substance. 3. Physical and chemical properties / Physical and chemical changes – identify them. 4. Intensive and extensive properties – Identify. Ch1-2 Notes (Matter-Measurements Class work) 1. Units – Know 7 base units and abbreviations in the SI system. – Know prefixes and their abbreviations and the order (large to small) (prefixes table in notes) 2. Scientific notation – convert between scientific notation and standard decimal notation. Ch1-3 Notes (Uncertainty-Dimensional Analysis Class work) 1. Write a measurement (ruler, graduated cylinder, thermometer) to correct uncertainty. 2. Exact numbers and measured numbers – know how to identify them 3. Significant figures – know the rules for counting, rounding and rules for operations. 4. Precision and accuracy– know the meaning of the two terms. Identify a given set of data as precise/accurate (notes, Quiz 1) 3. Random error and systematic error – know the meaning of the two terms and know how they relate to precision and accuracy (notes, Quiz 1) Ch1-4, Ch1-5 Notes (Density-Temperature-Atomic Theory Class work) 1. Use dimensional analysis to convert units. 2. Density calculations – Know how to find volume of an object (using a formula for regular shaped objects or using water displacement method for irregular shaped objects) – Use it in density calculation 3. Temperature conversions – Use the 2 formulas to convert between units Chapter2 (See extra practice, Quiz 2) Ch2-1 Notes: 1. Classification of elements in the periodic table (see notes) Metals, nonmetals, metalloids – identify given element. Know general properties of each category. Main group, transition, inner transition – identify the elements in these groups. Groups with special names – alkali metals, alkaline earth metals, halogens and noble gases – identify and know their properties. Physical states of elements - know which elements are solids, which 2 are liquids (mercury, bromine) and which are gases. Atomic and Molecular elements – know the 7 diatomic elements and the 3 polyatomic elements. Rest are atomic elements. Ch2-2 Notes: 1. Law of conservation of mass, Law of definite proportion and Law of multiple proportion – know what each law says – know calculations (Density-Temperature-Atomic Theory Class work) 2. Dalton’s atomic theory – know the four statements (notes) 3. Thompson’s cathode ray experiment, Millikan’s oil drop experiment, Rutherford’s gold foil experiment – know the major findings in each of the experiment (don’t worry about experimental details) Ch2-3 Notes: 1. Electrons, protons and neutrons – know their location, relative charge, relative mass etc. (notes) 2. Know the difference between the mass number and the atomic mass. 3. Nuclear symbols for atoms and ions – know how to write them and how to find the number of electrons, protons, neutrons and charge, if the nuclear symbol is given. (Atomic mass-Atom Class work) 4. Isotopes – know what isotopes are 5. Atomic mass calculations – Calculate using isotopic masses and percent abundances (Atomic mass- Atom Class work) 6. Isoelectronic species – identify isoelectronic ions/atoms (same number of electrons) Ch2-4 and Ch2-5 Notes: 1. Empirical formula, molecular formula, and structural formula - know what each means. - Find empirical formula from molecular formula or molecular formula from empirical formula 2. Identify ionic compounds (metal & nonmetal) and covalent compounds (two nonmetals). 3. Know how each bond forms. Ionic – electron transfer. Covalent – electrons shared 4. Know what valence electrons are. Find number of valence electrons from the group number (for main group elements). 5. Naming (Worksheet 1) - Write names and formulas for covalent compounds, ionic compounds, and acids. (See Names and Formulas Summary)