Review: Recognizing Chemical Symbols

What is the Periodic Table?

Next to each element, write whether it is a nonmetal or a metal Rb metal Sr metal Zr metal Ne nonmetal Ti metal H nonmetal Ni metal Rh metal Se nonmetal F nonmetal

**Elements in the same group will have a lot in common** Next to each element which element would be most similar? Na B Ca Si Cl O Kr Choose from the elements in this list: K C Be S Al He F Next to each element, write the symbol of the element it would be most similar to. (Hint: Elements in the same group will have a lot in common.) Choose from the elements in this list: P, K, C, Be, S, Al, C, He, F. Na K B Al Ca Be Si C Cl F O S Kr He

What chemical symbol goes with the element? Write the chemical symbol next to each element name. Bromine Br Silicon Si Gold Au Iron Fe Hydrogen H Helium He Lanthanum La Calcium Ca Bromine Silicon Gold Iron Hydrogen Helium Lanthanum Calcium What chemical symbol goes with the element?

For each molecule write the number of each type of atom, as well as the total number of atoms. NO2 C9H8O4 MgO CuSO4 NO2 N: 1 atom O: 2 atoms Total: 3 atoms C9H8O4 C: 9 atoms H: 8 atoms O: 4 atoms Total: 21 atoms CuFeS2 Cu: 1 atom Fe: 1 atom S: 2 atoms Total: 4 atoms MgO Mg: 1 atom O: 1 atom Total: 2 atoms CuSO4 Cu: 1 atoms S: 1 atoms Total: 6 atoms

List the reactants and products for each chemical reaction. Fe2O3 + 2Al → 2Fe + Al2O3 CS2 + 3O2 → CO2 + 2SO2 3PbF2 + 2PCl3 → 2PF3 + 3PbCl2

Fill in the number that will make each chemical equation balanced. Fe3O4 + 2C → ____Fe + 2CO2 2H2O2 → ____H2O + O2 KClO4 → KCl + ____O2 Fe3O4 + 2C → __3__Fe + 2CO2 2H2O2 → __2__H2O + O2 KClO4 → KCl + __2__O2