Snopin' It Up

Chemistry 250 Spring Final Exam

Materials: #2 pencil and a NON PROGRAMABLE calculator Start early and prepare a little every night. Budget certain chapters for certain nights. This study guide includes the major concepts we have covered over this year. Chapter 1: Introduction to Chemistry Vocabulary: chemistry, matter, mass, weight, scientific method, qualitative/quantitative data, hypothesis, experiment, independent variable, dependent variable, control, conclusion, theory, scientific law 1. Identify the common steps of scientific method. Chapter 2: Data Analysis Vocabulary: base unit, second, meter, kilogram, derived unit, liter, density, Kelvin, scientific notation, conversion factor, dimensional analysis, accuracy, precision, percent error, significant figure, graph Experiment 4: Relationships Between Variables Problems: 1-3, 12-21, 31-39, 72-85, 87 1. Define SI base units for time, length, mass, and temperature and explain adding a prefix. 2. Use dimensional analysis to convert between units. 3. Use significant figures and rounding to reflect the certainty of data. 4. Use percent error to describe the accuracy of experimental data. Chapter 3: Matter-Properties and Changes Vocabulary: substance, physical/chemical property, states of matter, physical change, chemical change, law of conservation of mass, mixture, heterogeneous mixture, homogeneous mixture, solution, filtration, distillation, crystallization, chromatography, element, periodic table, compound. 1. Distinguish between physical and chemical properties 2. Define chemical change and list indications that a chemical change has happened. 3. Apply the law of conservation of mass to chemical reactions. 4. Describe the organization of elements on the periodic table 5. Assigned element symbols Chapter 4: The Structure of the Atom Vocabulary: atomic theory, atom, cathode ray, electron, nucleus, proton, neutron, atomic number, isotope, mass number, atomic mass unit (amu), atomic mass, nuclear reaction,...