Chem. 151 – Chapter 2
1. Be familiar with what is stated in the Laws of Conservation of Mass, Definite Proportions, and Multiple Proportions.
2. Be able to use a chemical formula to determine how many of each type of element is present in a substance. Understand that the chemical formula helps to identify a substance and distinguish it from other substances consisting of the same elements.
3. Understand
how the early work of many scientists (i.e. Lavoisier,
4. Understand
how
5. Know the names and properties (relative mass and charge) of the three fundamental particles of an atom.
6. Know the relationship between electrons and protons in an atom.
7. Know what is symbolized by the atomic number of an element.
8. Recognize similarities and differences between isotopes.
9. Be able to differentiate between atoms, molecules, and ions.
10. Recognize that ions are charged particles formed when an atom gains of loses an electron. Know the relative charge on cations and anions. Know what the term "polyatomic ion" means.
11. Know that compounds containing ions are electrically neutral – achieved by a balance between charges on cations and anions. Be aware that ionic compounds are not molecules.
12. Be familiar with how the periodic table is set up, and be able to identify the following areas/subsections of the periodic table: groups/families, periods, alkali metals, alkaline earth metals, halogens, noble gases, metals, nonmetals, metalloids/semi-metals.
13. Be able to use the periodic table to locate atomic numbers and atomic weights/masses for elements.
14. Know the name, formula, and charge for the common ions listed in Table 2-5 on page 67. (An in-class announcement will be made to shorten this list somewhat.)
15. Be able to write names and formulas for any ionic compound formed by combining a cation and an anion from Tables 2-3, 2-4, and 2-5.
16. Be able to write names and formulas for covalent compounds.
17. Be able to write names and formulas for acids.