Name: SNC2D Final Exam K/U - / 10 T/I - /10 C- /10 A- /15 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is an example of a qualitative observation? a. length b. state of matter c. mass d. temperature 2. Which of the following steps is part of the planning process in a scientific investigation? a. identify the independent and dependent variables b. determine how the changes in the variables will be measured c. anticipate and address safety concerns d. all of the above 3. Which system is illustrated in the diagram shown below? a. b. c. d. nervous endocrine digestive Circulatory 5. The types of muscle tissue found in the body include all of the following, except a. cardiac b. respiratory c. smooth d. skeletal 6. Neurons specialize in a. sensory processing b. regulating organs c. communication d. protection 7. The skeleton consists of all of the following types of tissue, except a. cartilage b. bone c. ligaments d. tendons 8. The root system a. anchors the plant b. absorbs water and minerals from the soil c. stores food d. all of the above 9. Why is it important for the stomata to open and close? a. to regulate the exchange of gases b. to guard against disease c. to prevent the leaf from drying out d. all of the above 10. In the overall function of the plant, stomata act as a a. guard, monitoring the amount of sunlight the plant absorbs b. filter, monitoring the nutrients and water the roots take in c. door, opening and closing to allow gases in and out of the plant d. support, helping the plant to stay upright 11. The bark of a tree is composed of cork and a. xylem b. phloem c. wood d. root hairs 12. Bark is a form of what type of tissue? a. periderm b. epidermal c. vascular d. ground 13. Branches are what part of the plant? a. leaves b. flower c. stem d. root 14. Which kind of cells are not found inside a stem? a. phloem b. xylem c. cambium d. epidermis 15. Which element would be the best choice for making electrical wires? a. sodium b. copper c. magnesium d. iodine 16. When ionic compounds are dissolved in water, the freezing point is lowered in proportion to the number of ions that are released. All other factors being the same, which compound has the greatest ability to lower a solution’s freezing point? a. LiCl b. AlCl3 c. Na2S d. Na2SO4 17. Which equation shows the general form for a decomposition reaction? a. A B C b. A B AB c. AB C D d. AB A B 18. The pattern shows a a. single displacement reaction b. double displacement reaction c. corrosion reaction d. synthesis reaction 19. Which of the following is true? a. Galvanized steel is an alloy of iron and zinc. b. Galvanized steel is an alloy of iron and copper. c. Galvanized steel is a type of steel that has been coated with zinc. d. Galvanized steel is pure zinc oxide. 20. An electrolyte solution is a good conductor of electricity because a. it has molecular compounds b. it is grounded c. it contains ions d. it has gases 21. When they dissolve in water, all acids cause a. hydrogen ions to form b. anions to form c. gases to form d. heat to be released 22. What gets neutralized in a neutralization reaction? a. acids only b. bases only c. both acids and bases d. ionic compounds only 23. An acid is added to NaOH in a neutralization reaction that produces water and NaCl as products. What is the acid? a. H2OH b. HCl c. H2SO4 d. H2Na2 24. Which of the following is an (are) effect(s) of deforestation? a. It stops the forest from absorbing carbon. b. It releases stored carbon into the atmosphere as carbon dioxide. c. all of the above d. none of the above 25. Canadian forests are a. carbon sinks b. sources of carbon c. all of the above d. none of the above 26. Write the chemical name of the following compounds. Hint: molecular compounds consist of combinations of only non-metals. Use the Greek prefix for these. ( 5 - C) (5 – A) a) KBr ______________________________ k) CO2 __________________________________ b) SiCl4 _____________________________ l) KOH c) N2 m) NH4Cl _______________________________ _____________________________ ________________________________ d) MgCO3 ____________________________ n) H2SO4 (aq) ______________________________ e) SO3 o) NO _____________________________ _________________________________ f) Al2O3 _____________________________ p) Fe2S3 _________________________________ g) Fe(OH)3 ___________________________ q) KClO3__________________________________ h) Cu(NO3)2 __________________________ r) CuI2____________________________________ i) CuCl _____________________________ s) HF (aq) __________________________________ j) PCl3 _____________________________ t) MgI2___________________________________ 27. Match the appropriate stage of the cell cycle in column A to the description in column 2 and the diagram in column 3. (5-A) Cell Cycle Stage Description Metaphase Cells align along the equator Interphase Centrioles travel to the poles Prophase Cells replicate DNA Telophase Chromosomes are pulled to the poles Anaphase New cell membrane forms creating two cells 28. Define the following terms: ( 5-A) - Weather, Climate, Heat sink, Heat capacity, Albedo, Carbon sink, Convection current
