Test Objectives for Final Test
Composition Chemistry (Chapter 6)
1. Know how Avogadro's number is related to a mole of any substance.
2. Calculate the mass of a mole (molar mass) of any element or compound.
3. Use molar mass in calculations- example: given moles, find mass.
4. Use Avogadro's number in calculations- example: given mass, find number of atoms.
5. Use Avogadro's number in calculations- example: given mass, find number of molecules.
6. Calculate the percent composition of a compound. (example: penny lab calculations)
Measurement (Chapter 5)
1. Use metric prefixes and conversion factors to solve problems using dimensional analysis.
2. Convert between common SI (metric) units.
3. Determine the number of significant figures in measurements.
4. Round answers to correct significant figures in calculations.
5. Work with numbers in scientific notation.
Chemical Reactions (Chapter’s 7 and 8)
1. Identify indicators/evidence of chemical change/reactions.
2. Know the law of conservation of mass and how balanced chemical equations can verify it.
3. Be able to translate a word equation into a balanced chemical equation.
4. Write and balance chemical equations with proper formulas.
5. Identify the major types of chemical reactions.
6. Given reactants, identify reaction types and predict the products.
7. Classify chemical reaction types in more than one way.
8. Be able to write a dissociation equation for an ionic compound.
9. Be able to write a net ionic equation for a precipitate reaction.
10. Use solubility table to predict the products in precipitation reactions.
11. Use activity series table to predict whether a single displacement reaction will occur.
Chemical Nomenclature (Chapter 4)
1. Be able to write chemical formulas for ionic compounds, with, or without polyatomic ions.
2. Know that crisscrossing charges makes a compounds charge neutral (zero)
3. Given the chemical formula of an ionic or molecular compound be able to write the compounds name.
4. Know when to use roman numerals (the Stock naming system).
5. Be able to use the Greek prefixes to write chemical formulas for molecular compounds.
6. Know the names and formulas for the common acids and know how to recognize an acid from its chemical formula. (handout)
7. Define electrolyte and explain what occurs when an ionic substance dissolves (is soluble) in water. (Electric Solutions Lab)
Elements atoms and Ions (Chapter 3)
1. Know the basic layout of the periodic table, positions of groups and periods, metals vs. nonmetals, and the major families (groups) such as transition metals, noble gases, halogens, alkali, and alkaline earth metals.
2. From the periodic table be able to determine the number of valence electrons for elements in groups 1, 2, 13-18.
3. Define cation and anion and relate them to metals and nonmetals.
4. Distinguish between ionic and molecular compounds.
5. Given the symbol of an ion be able to determine the number of protons neutrons and electrons.
(Example: Br-1)
6. Know what the charge on an ion indicates- gain or lose electrons?
7. Know what the subscripts in a chemical formula indicate.
8. Be able to use the periodic table to indicate charge on the representative elements
Matter (Chapter 2)
1. Distinguish between physical and chemical properties.
2. Distinguish between physical and chemical change.
3. Be able to classify a sample of matter as a pure substance or mixture.
4. Distinguish between heterogeneous and homogeneous samples of matter.
5. Be able to distinguish between an element and a compound.
6. Be able to write out and interpret the nuclear (isotopic notation) symbol for an element and/or isotope.
7. Be familiar with the basic composition of the modern model of the atom.
8. Distinguish between atoms and isotopes.
9. Be able to interpret a basic chemical formula... know how formulas describe compounds.
10. Know the law of constant composition as it applies to compounds.