Cape Breton Victoria Regional School Board BRETON EDUCATION CENTRE Science 9 Examination June , 2008 Mr. Porter Please make sure your exam has each of the sections as follows: PART A – 25 Fill-In-The Blank – 1 pt. each for a total of 30 pts. PART B – 25 Multiple Choice - 1 pt. each for a total of 30 pts. PART C – 25 True or False - 1 pt. each for a total of 10 pts. PART D – for a total of 14 pts. PART E – 4 Short Answer - 4 pts. each for a total of 16 pts. For a total mark of 100 pts. Student Name:_____________ Exam Mark:_____ GOOD LUCK!!! WORD BANK compound solute suspension group solvent halogens noble gases asterism galaxy meteors asteroids element colloid metals period formula neutron alkali metals supernova geocentric meteorites quasars Part A - Fill – in – the – blanks heterogeneous solution homogeneous alloys alkaline earth metals non-metals metalloids chemical formula electron ion proton stable octet valence electrons proton parallax milky way heliocentric triangulation red giant parallax equinox andromeda (30 points) 1. ______________________ a term applied to pure substances and to mixtures that are of uniform composition throughout. 2. ______________________ a pure substance made up of two or more elements that are chemically combined. 3. ______________________ a homogeneous mixture of 2 or more pure substances. 4. ______________________ a homogeneous mixture of a metal with one or more metals or non-metals. 5. ______________________ term applied to mixtures that are not of uniform composition throughout. 6. ______________________ a substance that dissolves a solute to form a solution. 7. ______________________ a type of mechanical mixture in which extremely small particles of one or more substances are evenly and stably distributed in one or more others. 8. ______________________ a type of pure substance that can not be broken down into simpler parts by ordinary chemical means. 9. ______________________ a substance that dissolves in a solvent. 10. ______________________ a mechanical mixture consisting of a liquid of gas with small particles that are distributed through it, but that separate out if the suspension is left undisturbed. 11. ______________________ is horizontal row of elements in the periodic table. 12. ______________________ a chemical element such as gold, aluminum, or iron. 13. ______________________ uses symbols and numbers to represent the elements in a pure substance. 14. ______________________ a vertical column of elements in the periodic table. 15. ______________________ a chemical element that can have properties of both metals and non-metals. 16. ______________________ a pure substance made up of two or more elements that are chemically combined. 17. ______________________ a chemical element that does not possess the properties of metals. 18. ______________________ a type of pure substance that can not be broken down into simpler parts by ordinary chemical means. 19. ______________________ the electrons in the outer shell of an atom 20. ______________________ a positively charged particle forming part of the nucleus of an atom. 21. ______________________ a negatively charged particle found orbiting the nucleus of an atom. 22. ______________________ a particle carrying no electric charge and forming part of the nucleus of an atom. 23. ______________________ an atom with a positive or negative charge due to loss or gain of electrons. 24. ______________________ the stable arrangement of eight electrons in the outer shell of an atom or ion. 25. PART B – Multiple Choice – Select the correct response. (30 points) 1. Which is not a characteristic of a good scientist? a) skeptical b) egotistical c) honest d) persistent 2. The measurement of the amount of space occupied by a substance is known as its: a) area b) volume c) surface area d) mass 3. Which of these is not an example of an alloy: a) wood’s metal b) yellow gold c) aluminum d) stainless steel 4. If silver has a mass of 21.0 g and a volume of 2.00 cm3. What is the density of silver? a) 42.0 g/cm3 b) 10.5 cm3 c) 10.5 g/cm3 d) 42.0 g 5. Which is not one of the three states of matter? a) solid b) element c) liquid d) gas 6. 6. What is the chemical formula for water? a) H2O2 b) 2HO c) H2O d) HO2 7. All matter is made up of tiny particles called___________. a) atoms b) elements c) compounds d) families 3. An ionic compound is made up of oppositely charged _________. a) bonds b) ions c) electrons d) protons 4. The two gases that make up the bulk of the atmosphere around us are: a) Nitrogen and Carbon c) Carbon and Oxygen b) Nitrogen and Oxygen d) clouds 5. Which of the following is NOT a part of the Greek four-element theory? a) fire b) earth c) land d) air e) water 6. An____________ is a pure substance made up of one type of particle, or atom. a) element b) compound c) atom d) family 7. How many atoms are in the chemical formula NaHCO3? a) 4 b) 5 c) 6 d) 7 8. Which of the following is NOT a part of the three families of which elements can be sorted? a) metals b) non-metals c) metallics d) metalloids 9. How many electrons are found on the first energy level or shell? a) 2 b) 8 c) 18 d) 32 10. How many electrons are found on the second energy level or shell? a) 2 b) 8 c) 18 d) 32 11. Ionic compounds are _______________________________________. a) composed of metal ions bonded to other metal ions. b) formed when metal react with non-metals. c) substances with low melting points. d) usually insoluble in water. 12. Molecular compounds __________________________________. a) are combinations of metals and non-metals. b) form when electrons are shared. c) are good conductors of electricity. d) result from the transfer of electrons. 13. Which of the following atoms does not have a stable octet? a) An atom of sodium. (Na) c) An argon atom. (Ar) b) A chloride ion. (Cl-) d) A sodium ion. (Na+) 14. Which of the following elements is NOT a noble gas? a) Helium b) Argon c) Hydrogen d) Neon 15. Which of the following elements is NOT an Alkali Metal? a) Lithium b) Sodium c) Aluminum d) Potassium 16. The first electron shell can hold up to how many electrons? a) 2 b) 8 c) 18 d) 32 17. The second electron shell can hold up to how many electrons? a) 2 b) 8 c) 18 d) 32 18. Atomic number is equal to the number of ____________________. a) protons b) electrons c) both a and b d) neither a nor b 19. An element has a stable ring if __________________________. a) the outer ring is full of electrons b) the outer ring needs 1 electron c) the outer ring has 2 electrons d) the outer ring has 1 extra electron 20. PART C – True or False (10 points) Write either True or False for each statement. T or F will not be accepted, you have to write out either TRUE or FALSE. 1. Ice melting is an example of a physical change. 2. During a chemical change, no new substance is formed. 3. Volume is the weight of something. 4. A chemical change can be reversed. 5. Burning paper is an example of a physical change. 6. Water is an example of an element. 7. The chemical symbol for carbon is Ca. 8. The Third energy level has 18 electrons. 9. Protons have a positive charge. 10. Neutrons have no charge. 11. Most of the space in an atom is half empty. 12. Electrons have a positive charge. 13. Noble gases are found in Group 18. 14. The latin name for Lead is plumbum. 15. Most metals are a liquid at room temperature. 16. Plants produce CO2 through photosynthesis. 17. Alkali metals lose an electron to form a stable octet. 18. A sodium ion (Na+) has a stable octet of electrons. 19. Halogens lose an electron to form a stable octet. 20. JJ Thomson is the Father of the Electron T T T T T T T T T T T T T T T T T T T T F F F F F F F F F F F F F F F F F F F F PART D – (14 points) 1. Complete the following chart. Compound Formula silica SiO2 sucrose C12H22O11 Magnetite Fe3O4 Elements Present 2. Complete the following chart. number Number of Element Symbol of electrons protons (when stable) Sodium Chlorine Lithium Oxygen Fluorine Calcium Number of neutrons # of atoms of each element Number of valence electrons Oxidation Number PART E – Short Answer