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Chem 111 - Exam 1 Study Guide

by: AveryLemler

Chem 111 - Exam 1 Study Guide Chem 111

Marketplace > Colorado State University > Chemistry > Chem 111 > Chem 111 Exam 1 Study Guide

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About this Document

This study guide covers everything you need to know for the first exam. Anything that is not on here is either provided on the cover sheet for the exam or not needed for the exam.
General Chemistry I
Dr. Ruth Tucker
Study Guide
General Chemistry, Chemistry, Chem, Colorado State University
50 ?




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This 7 page Study Guide was uploaded by AveryLemler on Sunday September 11, 2016. The Study Guide belongs to Chem 111 at Colorado State University taught by Dr. Ruth Tucker in Summer 2016. Since its upload, it has received 565 views. For similar materials see General Chemistry I in Chemistry at Colorado State University.


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Date Created: 09/11/16
Chem 111 ­ CSU      StudySoup ­ Avery  Chem 111 Exam 1 Study Guide    ● Know these conversion factors:    mega­  10​6  centi­  10​­2  3  ­3  kilo­  10​ milli­  10​ ­6      micro­  10​     nano­  10​­9    ● Be able to determine the relative “metalness” of metalloids  ○ Whether they are more like metals or nonmetals  ● Significant Figures: all nonzero digits that are certain plus one digit that is  uncertain    Fill­in­the­Blank Questions:     1. Chemical Properties: things that ________ be determined about an object just by  looking at it    2. Physical Properties: things that ________ be determined about an object just by  looking at it    3. ________ Change: a transformation of a sample of matter that alters the  chemical identity of any substance in the sample  Chem 111 ­ CSU      StudySoup ­ Avery  4. ________ Change: a transformation of a sample of matter that does not alter the  chemical identity of any substance in the sample (Ex: A change in state of  matter)    5. Atomic Charges:  a. Positive: more _______ than _______  b. Neutral: equal number of _______ and _______  c. Negative: more _______ than _______    6. Groups of the Periodic Table: columns based on similar chemical and physical  properties  a. Group 1: _______ Metals  b. Group 2: _______ _______ Metals  c. Group 17: _______ ­ Highly reactive  d. Group 18: _______ _______ ­ Not reactive    7. Families of the Periodic Table: rows that _______ in atomic number and number  of valence electrons from left to right, top to bottom    8. Potential and kinetic energy have a(n) _______ relationship.    9. _______ Spectrum: Hydrogen emits certain wavelengths of light that can be  measured on a Spectrometer  a. Hydrogen electron bounces from shell to shell as photons of light either  give or take away energy from the electron.  b. The electron releases energy that was given to it by a photon, moves  _______ energy levels, and creates a line on the Spectrometer.    Chem 111 ­ CSU      StudySoup ­ Avery  10._______ Model: a model of an atom that depicts electrons traveling in circular  orbits around the nucleus    11.Blue Light: shortest wavelength, _______ frequency, highest energy    12.Red Light: longest wavelength, _______ frequency, lowest energy    13.                            Chem 111 ­ CSU      StudySoup ­ Avery  Circle the correct term:    1. (Precision/Accuracy): the extent to which repeated measurements of the same  variable agree    2. (Precision/Accuracy): how close the measured value is to the true value    3. (Metals/Nonmetals/Metalloids): liquids, gases, and brittle solids that do not  conduct heat    4. (Metals/Nonmetals/Metalloids): shiny solids that conduct heat and are malleable  and ductile    5. (Metals/Nonmetals/Metalloids): elements whose properties are between metals  and nonmetals and are semiconductors    6. (Potential/Kinetic) Energy: the energy of an object in motion due to its mass and  speed  a. The faster an object is going, the more (potential/kinetic) energy it has.    7. (Potential/Kinetic) Energy: the energy stored in an object because of its position  a. The further away an object is from an object it is attracted to, the more  (potential/kinetic) energy it has.    8. (Wavelength/Frequency): the distance between each crest in a wave, measured  in meters    9. (Wavelength/Frequency): the number of crests of a wave that pass a certain  ­1  point per second, measured in s​ Chem 111 ­ CSU      StudySoup ­ Avery  Answer the following questions:    1. How do you calculate average atomic mass?           2. How many Hydrogen atoms are in Fe(OH​ )​ ?  2​ 3​     3. What is Avogadro’s number and what does it represent?                                      Chem 111 ­ CSU      StudySoup ­ Avery  Answer Key  Fill­in­the­Blank Questions:  1. cannot  2. can  3. Chemical  4. Physical  5.    a. protons; electrons  b. protons; electrons  c. protons; electrons  6.    a. Alkali  b. Alkaline Earth  c. Halogens  d. Noble Gases  7. increase   8. inverse  9. Hydrogen  a.    b. down   10.Bohr  11.longest  12.shortest  13.A: atomic mass (protons + neutrons)  Z: atomic number (number of protons)  C: atomic charge  X: elemental symbol      Circle the Correct Term Questions:   1. Precision  2. Accuracy  3. Nonmetals  4. Metals  5. Metalloids  6. Kinetic  a. kinetic  7. Potential  a. potential  8. Wavelength  9. Frequency        Chem 111 ­ CSU      StudySoup ­ Avery  Free­Response Questions;  1. Natural Abundance of One Isotope x Mass of One Isotope = Product  ○ Repeat for all isotopes  All products added together = Average Atomic Mass  2. 6  3. 6.0221 x 10​ , number of particles in one mole                               


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