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Questions and Answers
What is the name of the compound with the formula NO₃?
What is the name of the compound with the formula NO₃?
Which basic need was best met by the use of bitumen in canoe waterproofing?
Which basic need was best met by the use of bitumen in canoe waterproofing?
Which of the following chemical formulas represents an ionic compound?
Which of the following chemical formulas represents an ionic compound?
A lab technician requires a thorough knowledge of chemistry to perform daily tasks.
A lab technician requires a thorough knowledge of chemistry to perform daily tasks.
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Flammable substances are always gaseous.
Flammable substances are always gaseous.
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What is bitumen commonly used for in a practical application?
What is bitumen commonly used for in a practical application?
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What is element X if it represents an element known for its atomic structure?
What is element X if it represents an element known for its atomic structure?
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Bitumen does not flow as freely as __________.
Bitumen does not flow as freely as __________.
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Which of the following careers would NOT require a thorough knowledge of chemistry?
Which of the following careers would NOT require a thorough knowledge of chemistry?
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The chemical formula for iron(II) oxide is _________.
The chemical formula for iron(II) oxide is _________.
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Match the WHMIS hazards with their corresponding warning labels:
Match the WHMIS hazards with their corresponding warning labels:
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Match the chemical compound with its characteristic:
Match the chemical compound with its characteristic:
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Which of the following best describes a corrosive substance?
Which of the following best describes a corrosive substance?
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What are the four basic elements that all matter was believed to be composed of according to historical models?
What are the four basic elements that all matter was believed to be composed of according to historical models?
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List one property that identifies a flammable substance.
List one property that identifies a flammable substance.
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What is the value of Avogadro's number?
What is the value of Avogadro's number?
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One mole of any substance contains the same number of particles.
One mole of any substance contains the same number of particles.
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How many particles are in 3 moles of H₂O?
How many particles are in 3 moles of H₂O?
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1 mol of a substance contains __________ particles.
1 mol of a substance contains __________ particles.
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What type of reaction is indicated when the reactants have less energy than the products?
What type of reaction is indicated when the reactants have less energy than the products?
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Match the following terms with their definitions:
Match the following terms with their definitions:
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A reaction is considered exothermic when the reactants have more energy than the products.
A reaction is considered exothermic when the reactants have more energy than the products.
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What are the products formed when aluminium reacts with iron(III) oxide?
What are the products formed when aluminium reacts with iron(III) oxide?
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The balanced equation for calcium carbonate reacting with hydrochloric acid results in _____ and calcium chloride.
The balanced equation for calcium carbonate reacting with hydrochloric acid results in _____ and calcium chloride.
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In which type of reaction does calcium carbonate interact with hydrochloric acid?
In which type of reaction does calcium carbonate interact with hydrochloric acid?
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Match the following chemical reactions with their definitions:
Match the following chemical reactions with their definitions:
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When balancing the equation ___ CaCO₃ + ___ HCl → ___ H₂CO₃ + ___ CaCl₂, the coefficient for HCl is _____ as part of the balanced reaction.
When balancing the equation ___ CaCO₃ + ___ HCl → ___ H₂CO₃ + ___ CaCl₂, the coefficient for HCl is _____ as part of the balanced reaction.
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The reaction of aluminium with iron(III) oxide is a single replacement reaction.
The reaction of aluminium with iron(III) oxide is a single replacement reaction.
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Which of the following would not be considered a health factor associated with the long-term use of tobacco products?
Which of the following would not be considered a health factor associated with the long-term use of tobacco products?
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Combustion of methane is represented by the reaction: CH₄ₒ + O₂ₒ → CO₂ₒ + H₂Oₒ.
Combustion of methane is represented by the reaction: CH₄ₒ + O₂ₒ → CO₂ₒ + H₂Oₒ.
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What is the process represented by the reaction: 6 CO₂ₒ + 6 H₂Oₑ → C₆H₁₂O₆ₐ + 6 O₂ₒ?
What is the process represented by the reaction: 6 CO₂ₒ + 6 H₂Oₑ → C₆H₁₂O₆ₐ + 6 O₂ₒ?
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The process of burning a piece of paper to start a fire is an example of a __________ change.
The process of burning a piece of paper to start a fire is an example of a __________ change.
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Match the chemical reactions above with their corresponding processes:
Match the chemical reactions above with their corresponding processes:
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Which of these reactions involves electrolysis?
Which of these reactions involves electrolysis?
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Toasting a piece of bread is an example of a physical change.
Toasting a piece of bread is an example of a physical change.
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List four examples of chemical change from the provided descriptions.
List four examples of chemical change from the provided descriptions.
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Study Notes
Chemistry Unit Test - Version 1
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Bitumen Properties: Bitumen is similar to oil (both hydrocarbons), but it does not flow freely, and is thick like molasses.
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Aboriginal Canoe Waterproofing: Aboriginal people used bitumen (combined with spruce gum) to waterproof their canoes.
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Canoe Waterproofing Benefits: The use of bitumen for canoe waterproofing primarily improved access to fishing and hunting areas.
Four Models of Matter
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Model 1 (Earliest): Positively charged material with negatively charged electrons embedded in it.
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Model 2: A small positively charged nucleus with electrons surrounding it in empty space.
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Model 3 (Most Recent): A small, positively charged nucleus with orbiting electrons.
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Model 4 (Ancient Greek): Matter is made up of earth, air, fire, and water.
Numerical Response - Question 1
- Model Order: The correct numerical response for the order the models were proposed by scientists, from earliest to most recent.
Four Models of Matter (Numerical Response - Question 1)
- Career Not Requiring Chemistry: The career that would likely not necessitate a thorough understanding of chemistry for everyday tasks is a lawyer.
Warning Labels for WHMIS Symbols
- WHMIS Symbols (Numerical Response - Question 2): An arrangement of WHMIS symbols in order of their discovery and proposal.
Atomic Structure (Question 3)
- Element Identification: The element depicted in the atomic structure diagram is Boron.
Chemical Formulas (Question 4)
- Ionic Compound Identification: The ionic compound listed in the given options is Na3PO4.
Compound Names (Question 5)
- Compound Name: The name of the compound with the formula NO3 is nitrogen trioxide.
Chemical Formulas (Question 6)
- Iron(II) Oxide Formula: The chemical formula for iron(II) oxide is FeO.
Chemical Solutions (Numerical Response - Question 3)
- Solution Types Matching: Details of the types of solutions based on the descriptions for matching purposes.
Solubility (Question 7)
- Most Soluble Compound: The compound which is most soluble in water is NaNO3.
Tobacco Health Factors (Question 8)
- Tobacco Health Risk Exclusion: Stained and discolored teeth is not considered a primary health risk factor associated with long term tobacco use.
Chemical Reaction Types (Numerical Response - Question 4)
- Matching Chemical Reactions to Processes: A table matching chemical reactions to their corresponding processes. (baking powder in baking, combustion of methane, electrolysis of water, and photosynthesis)
Chemical Changes (Numerical Response - Question 5)
- Identifying Chemical Changes: The descriptions of chemical changes from the provided list.
Reaction Type (Question 9)
- Exothermic or Endothermic: The reaction, 2 N2(g) + 3 H2(g) → 2 NH3(g) is exothermic, since the reactants have less energy than the products.
Reaction Classification (Question 10)
- Reaction Type: The reaction 2 N2(g) + 3 H2(g) → 2 NH3(g) represents a formation reaction .
Chemical Reaction Balancing (Numerical Response - Question 6)
- Balanced Chemical Equation: The balanced chemical equation for CaCO3(s) + HCl(aq) → H2CO3(aq) + CaCl2(aq) is CaCO₃ + 2HCl → H₂CO₃ + CaCl₂
Metal Reaction Products (Question 11)
- Unknown Reaction Products: The unknown products in the reaction Al(s) + Fe2O3(s) → ? + ? are iron and aluminium.
Avogadro's Number (Numerical Response - Question 7)
- Number of Molecules: The number of molecules in 2.7 mol of H2S expressed in scientific notation.
Molar Calculations(Numeral Response - Question 8)
- Moles Calculation: The number of moles in 4.86 x 10^25 formula units of K3PO4.
Zinc Reaction (Numeral Response - Question 9)
- Zinc Reaction Mass: The mass of zinc produced in the reaction.
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Description
Test your knowledge on the properties of bitumen and the four models of matter. This quiz includes questions on the significance of bitumen in Aboriginal canoe waterproofing and the evolution of scientific models of matter. Challenge yourself and see how well you understand these fundamental concepts in chemistry!
