CHAPTER 2
ASSESSMENT
Chapter 2 Chapter Test
Name:
/30
Date:
Goal
To test your knowledge of pure substances, the periodic table, and chemical formulas.
What to Do
Read the instructions carefully before answering each set of questions.
Multiple Choice (15 marks)
Read each question and the list of possible answers. Circle the best answer.
1. How is the periodic table organized?
(a) by properties of elements
(b) by relative mass of elements
(c) using both properties and relative mass
of elements
(d) in order of discovery of the elements
2. What does the staircase line on the periodic
table separate?
(a) metals from non-metals
(b) metals from other metals
(c) non-metals from other non-metals
(d) elements with similar properties
3. What elements are found in the shaded area
of the periodic table?
(a) metals
(b) non-metals
(c) groups
(d) periods
4. As you move your finger across the
periodic table from left to right, which of
the following statements is true?
(a) The relative mass of the elements
decreases.
(b) The elements become more shiny.
(c) The elements conduct electricity better.
(d) The relative mass of the elements
increases.
Use this blank of the periodic table to answer questions 3 and 4.
CHAPTER 2
ASSESSMENT
BLM 2–9
Chapter 2 Chapter Test
(continued)
5. Which of the following properties does not
describe a metallic element?
(a) reflects light easily
(b) poor conductor of heat and electricity
(c) easily shaped
(d) probably solid
6. Which of the following statements properly
describes the periodic table?
(a) Elements are organized in alphabetical
order.
(b) The rows are called groups.
(c) The rows are called periods.
(d) Elements are organized in order of
discovery.
9. Which statement is true of a chemical
formula?
(a) uses subscript numbers to indicate
number of compounds in the substance
(b) indicates the chemical properties of the
substance
(c) describes the physical properties of the
substance
(d) uses subscript numbers to indicate the
ratio of elements in a substance
10. How many elements are found in
monosodium glutamate, which has this
formula: NaC5H8NO4(s)?
(a) 5
(b) 17
(c) 19
7. A pure substance is made up of only one
type of particle. Which of the following
items lists pure substances?
(a) elements only
(b) compounds and mixtures
(d) 4
11. How many atoms are found in a single
particle of monosodium glutamate, which
has this formula: NaC5H8NO4(s)?
(c) all matter
(a) 5
(d) compounds and elements
(b) 17
(c) 19
8. What does a decomposition reaction do?
(a) combines elements to form a new
substance
(b) breaks an element into simpler
substances
(c) breaks a compound into simpler
substances
(d) turns a nickel into gold
(d) 4
CHAPTER 2
ASSESSMENT
BLM 2–9
Chapter 2 Chapter Test
(continued)
12. Which of the following best describes a
decomposition reaction?
(a) Chemical energy is used to produce
electrical energy.
14. Many household products have scientific
names. Which of the following pair of
common name and scientific name is
correct?
(b) Electrical energy is used to break a
compound apart.
(a) baking soda, sodium bicarbonate
(c) A more complex substance is formed.
(c) vinegar, hydrochloric acid
(d) Compounds form from elements.
(d) vinegar, sodium chloride
13. What elements can be trapped by
decomposing water?
(b) baking soda, hydrogen bicarbonate
15. Which of the following pair of terms is
incorrect?
(a) air and water vapour
(a) non-metal, shiny
(b) oxygen and hydrogen
(b) element symbol, one or two letters
(c) helium and oxygen
(c) compounds, can be broken into simpler
substances
(d) hydrogen and osmium
(d) element, cannot be divided easily
Short Answer (15 marks)
Read each question carefully. Write your answer in the space provided. Answers in point form are
permitted.
16. Describe two ways the periodic table is
organized. (2 marks)
17. Scientists have used decomposition
reactions to see if a substance could be
broken down into simpler substances.
Discuss how scientists could use this
process to see if a substance was a
compound or an element. (2 marks)
Copyright © McGraw-Hill Ryerson Limited. Permission to reproduce this page is granted to the purchaser for use in her/his classroom only.
CHAPTER 2
ASSESSMENT
BLM 2–9
Chapter 2 Chapter Test
(continued)
18. Compare metallic and non-metallic elements by completing this chart. List at least two similarities
and at least two differences. (4 marks)
Differences
Metals
Non-metals
Similarities
19. (a) How many different elements are
found in acetaminophen, C9H9NO2(s)?
(1 mark) ______
20. Why is it important for scientists everywhere around the world to use standard
symbols for the elements? (1 mark)
(b) How many atoms are found in a single
particle of acetaminophen?
Show your work. (1 mark)
21. Chemicals play a major role in our everyday lives. Think about two chemicals that are important to
you and describe the role of each. (2 marks)
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22. You are given a sample of an unknown element. Describe two tests you would use to determine
whether this element is a metal or a non-metal. (2 marks)
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Copyright © McGraw-Hill Ryerson Limited. Permission to reproduce this page is granted to the purchaser for use in her/his classroom only.