Grade 9 Chemistry Test Review

7.1 and 7.3 Putting Atoms Together/How Atoms Combine

Know the terms atom, molecule, element, compound, pure substance, mixture Know the molecular elements/diatomic molecules (HOFBrINCl) Know what ionic compounds are Know how to name ionic compounds Know some properties of ionic compounds (see package) Know the structure of ionic compounds (crystal structure like a cube) Know how ionic compounds form ionic bonds (Bohr Rutherford Diagrams) Know the terms cation/anion Know what molecular compounds are Know how molecular compounds form covalent bonds (Bohr Rutherford Diagrams) Know how to write the chemical formula for elements/compounds

7.6 Breaking Molecules Apart: Properties of Hydrogen Peroxide Be able to interpret a chemical reaction written in words Know what a catalyst is Know some the safety precautions that must be followed when using/storing/disposing of hydrogen peroxide