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Physical Properties Unit Review Name________________________Per___ 1. Complete the following table for the physical properties of a quarter. PHYSICAL PROPERTY QUARTER PHYSICAL PROPERTY QUARTER Color State Luster Magnetic Malleable Conductive 2. What is the density of an object with a mass of 5 g and a volume of 2 cm3? 3. Which of the following will float in a liquid with a density of 1.5 g/cm3? A. 1.6 g/cm3 B. 3.6 g/cm3 C. 1.2 g/cm3 4. Complete the following chart for the states of matter. STATE OF SHAPE VOLUME MATTER (definite or not) (definite or not) Solid EXAMPLES DRAWING OF PARTICLES Liquid Gas 6. What causes a substance to change from one state to another?_______________________________ 7. Write physical or chemical change for each of the following: Water evaporating burning toast Fireworks exploding ice melting nail rusting Ripping paper 8. Write element, compound or mixture below each of the following diagrams. Compound Unit Review 1. Complete the following table: COMPOUND LIST OF ELEMENTS IN THE COMPOUND # OF EACH ELEMENT H2SO4 NaCl Fe2(SO4)3 2. Chemical bonds occur when electrons are _____________________ or ________________________. 3. The combining ability of an atom is called the ______________________________number. 4. Describe each bond and draw a diagram to show what is happening with the valence electrons. COVALENT IONIC Element Unit Review 1. Write the chemical symbol for each of the following: _____ hydrogen _____potassium _____ carbon _____ oxygen _____ magnesium _____sodium 2. Use the Periodic Table to complete the following chart: Element Atomic Number Atomic Mass Protons Oxygen Sodium Fluorine _____ lithium _____chlorine Electrons Neutrons Metal or Nonmetal 3. Complete the following table: ATOMIC PARTICLE LOCATION CHARGE MASS (in nucleus or outside nucleus) (positive, negative or neutral) (1 amu or very little mass) Proton Neutron Electron 4. Circle the correct atomic particle for each of the following: Defines an atom Protons Neutrons Electrons Isotopes: same type of atom with different number of Protons Neutrons Determines how atoms combine Protons Neutrons Electrons Ions: same type of atom with different number of Protons Neutrons Electrons Electrons 5. According to current atomic theory, what is the best description for the location of the electrons? A. Orbiting in perfect rings around the nucleus B. A cloud around the nucleus showing where an electron is likely to be 6. Complete the following table: Element Group or Column # Period or Row # # of Energy Levels # of Valence Electrons Magnesium Carbon Chlorine 7. Which group has the most stable arrangement of electrons in the outer energy level?__________________________ 8. Which group name means “salt makers”? ____________________________________________________________ Reactions Unit Review 1. Complete the table below for each reaction: REACTION REACTANTS PRODUCTS TYPE OF RXN Mg + O2 MgO KBr + Cl2 KCl + Br2 HCl + NaOH H2O + NaCl H2O2 H2O + O2 2. What is the relationship between the Law of Conservation of Mass and chemical reactions? BALANCED? 3. If a reaction has 17 g of reactants, how many grams of combined products will the reaction have?_____________ 4. What is the difference between exothermic reactions and endothermic reactions? 5. What factors make a reaction go faster?