CHEM 111 General Chemistry I (Face-to-Face) Exam 1 Review Fall 2024 PDF

CHEM 111 General Chemistry I (Face to Face) Review Topics and Practice Problems for Exam 1 1. Know the definition of Chemistry 2. Be able to distinguish matter from non-matter 3. Be able to state the SI Units of Measurement 4. Understand the SI/Metric unit prefi...

CHEM 111 General Chemistry I (Face to Face) Review Topics and Practice Problems for Exam 1 1. Know the definition of Chemistry 2. Be able to distinguish matter from non-matter 3. Be able to state the SI Units of Measurement 4. Understand the SI/Metric unit prefixes and the relationships between the prefixes 5. Be able to express a number in Scientific Notation, and know the terms for the numbers involved in scientific notation 6. Understand density and its calculations 7. Understand dimensional analysis (unit conversion) 8. Be able to convert between degrees Fahrenheit, degrees Celsius, and Kelvin (equations will be given in the exam) 9. Understand the classifications of matter 10. Understand homogenous vs. heterogeneous mixtures 11. Understand the energetic relationships between states of matter 12. Be able to describe states of matter on the macroscopic and particulate levels 13. Know the terms for the different phase changes 14. Understand physical and chemical changes 15. Understand physical and chemical properties 16. Know the atomic structures 17. Know the atomic number 18. Can find the names and chemical symbols of common elements on the periodic table 19. Recognize and be able to write symbols like 23 11 Na + and know what each part of the symbol represents. 20. Find the number of protons, neutrons, and electrons in any atom or ion, given its symbol written as in the line above. 21. Recognize groups and periods of the periodic table 22. Be able to recognize which elements are in the following classifications: alkali metals, alkaline earth metals, transition metals, halogens, noble gases, metals, nonmetals, metalloids, lanthanides, and actinides 23. Know the characteristics and locations of the three subatomic particles 24. Know how to calculate the mass number of an atom 25. Understand atomic mass unit 26. Give the definition of isotope 27. Be able to calculate the average atomic mass (atomic weight) of an element, given the percent abundance of two isotopes, or calculate percent abundance given the average atomic mass (atomic weight) of the isotopes present 28. Understand the concepts of ions (anion and cation) and polyatomic ions 29. Know how to determine the charges of main group elements when they become ions, i.e., be able to give the likely charge of an ion based upon the element’s position in the periodic table 30. Be able to differentiate between ionic and molecular compounds 31. Know how to write the chemical formula for ionic compounds if given ions 32. Know how to determine the ion charges in an ionic compound 33. Understand the definition and concept of Mole and Avogadro's number 34. Understand the atomic weight, molecular weight and molar mass, and know their units 35. Know the conversions among mass, mole, and number of particles, and find the number of atoms, molecules, moles, and grams of any compound given one of these quantities. 36. Calculate the percent composition by weight of any element in a compound, given its chemical formula. 37. Know the difference between an empirical formula and a molecular formula 38. Determine the empirical formula of a compound from the percent composition of its elements 39. Find the molecular formula of a compound from its empirical formula and molar mass Practice Problems (from our textbook, and the answer keys are at the end of the textbook starting on Page 1141) Chapter 1 (Page 50): 9, 11, 13, 19, 25, 29, 39, 45, 57, 65, 67, 75, 81, 87, 89, 93, 95, 97 Chapter 2 (Page 107): 7, 19, 25, 29, 33, 39, 41, 47 Chapter 3 (Page 151): 1, 5, 9, 13, 17, 19, 25, 27, 31, 39, 43