Honors Chemistry Quiz 1

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  • 1/21 Questions

    To avoid losing some of your samples due to super heating you

    • Heat on a high temperature
    • Heat gently
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Honors Chemistry Quiz 1 - Quiz
About This Quiz

This quiz assesses knowledge on laboratory safety, handling of chemicals, and use of equipment in an honors chemistry context.

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  • 2. 
    What type of flask is this? - ProProfs

    What type of flask is this?

    • Erlenmeyer

    • Volumetric

    Correct Answer
    A. Volumetric
    Explanation
    The flask in question is most likely a volumetric flask. This is because an Erlenmeyer flask typically has a conical shape with a wide base and narrow neck, while a volumetric flask has a more cylindrical shape with a narrow neck and a flat bottom. Since the flask in question is not described as having a conical shape, it is more likely to be a volumetric flask.

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  • 3. 
    What are these? - ProProfs

    What are these?

    • Gas-collecting bottle

    • Volumetric flask

    • Erlenmeyer flask

    • Beaker

    • Graduated cylinder

    Correct Answer
    A. Beaker
    Explanation
    The given options are all laboratory glassware used for various purposes. A beaker is a cylindrical container with a flat bottom and a pouring lip, commonly used for mixing, heating, and holding liquids. It is the only option that fits this description, as the other options have specific uses such as collecting gases (gas-collecting bottle), measuring volumes (volumetric flask and graduated cylinder), or holding and mixing solutions (Erlenmeyer flask). Therefore, the correct answer is beaker.

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  • 4. 

    Place beakers, flasks, and evaporating dishes on what to spread the heat while using a ring stand

    • Wire gauze

    • Pipstem triangle

    Correct Answer
    A. Wire gauze
    Explanation
    Wire gauze is used to spread the heat evenly when using a ring stand. It acts as a support for beakers, flasks, and evaporating dishes, allowing the heat to be distributed more evenly across the bottom of the container. This prevents localized heating and helps to prevent the glassware from cracking or breaking due to sudden temperature changes. The wire gauze also helps to protect the underlying surface from direct contact with the heat source, reducing the risk of damage.

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  • 5. 

    Labratory goggles must be worn when

    • Chemicals are being used

    • Heat is being used

    • Glass wear is being used

    • All of the above

    • A and C only

    Correct Answer
    A. All of the above
    Explanation
    Laboratory goggles must be worn when chemicals are being used to protect the eyes from potential splashes or spills. They must also be worn when heat is being used to protect the eyes from any potential hazards. Additionally, laboratory goggles must be worn when glassware is being used to prevent any potential breakage or shattering that could harm the eyes. Therefore, the correct answer is "all of the above" as all three conditions require the use of laboratory goggles for eye protection.

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  • 6. 

    Sinks are to be used for

    • Water only

    • Water and acids

    • Water and certain solutions

    • Acids only

    • Bases only

    Correct Answer
    A. Water and certain solutions
    Explanation
    The sinks are designed to be used for water and certain solutions. This means that they can be used for both water and specific types of solutions, which indicates that they are suitable for a wider range of substances. It is important to note that they are not intended for use with acids only or bases only, suggesting that they may not be compatible with these substances.

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  • 7. 

    How do you pour a solid chemical onto a balance pan

    • Weigh the beaker and then pour it into a beaker

    • Pour it directly onto the pan

    • Weigh the paper pour it onto a peice of weighing paper

    Correct Answer
    A. Weigh the paper pour it onto a peice of weighing paper
    Explanation
    The correct answer is to weigh the paper and pour the solid chemical onto a piece of weighing paper. Weighing the paper ensures that the weight of the paper is subtracted from the total weight of the chemical, allowing for a more accurate measurement. Pouring the chemical onto a piece of weighing paper also prevents any loss or contamination of the chemical, as it can be easily transferred to the desired container or location.

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  • 8. 

    Should you set the stopper on the table

    • Yes

    • No

    Correct Answer
    A. No
    Explanation
    The question is asking whether or not you should set the stopper on the table. The correct answer is "No" because setting the stopper on the table implies that it should be placed there permanently or for an extended period of time, which is not necessary or recommended. The stopper should only be used when needed, such as to stopper a bottle or container temporarily, and then it should be put away in a proper place.

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  • 9. 
    What is this? - ProProfs

    What is this?

    • Gas-collecting tube

    • Measuring pipet

    • Thermometer

    • Glass-stoppered buret

    • Stiring rod

    Correct Answer
    A. Glass-stoppered buret
    Explanation
    A glass-stoppered buret is a type of laboratory glassware that is used for accurate measurement and dispensing of liquids. It consists of a long, graduated glass tube with a stopcock at the bottom and a glass stopper at the top. The stopper ensures that the liquid inside the buret remains sealed and prevents any contamination or evaporation. This makes it suitable for precise titrations and other analytical procedures where accurate volume measurements are required.

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  • 10. 

    Why do we use a fluted filter to filter a solid from a liquid?

    • It allows the liquid to pass through and not the solid.

    • It is more efficient at displacing the air in the vessel where the liquid is filtered.

    • It is faster.

    Correct Answer
    A. It is more efficient at displacing the air in the vessel where the liquid is filtered.
    Explanation
    The fluted filter is more efficient at displacing the air in the vessel where the liquid is filtered. This is because the fluted design creates more surface area for the liquid to flow through, allowing for better air displacement. As a result, the solid particles are effectively filtered out while the liquid can pass through easily. The other options, such as allowing the liquid to pass through and not the solid or being faster, do not directly relate to the use of a fluted filter for air displacement.

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  • 11. 
    What is this? - ProProfs

    What is this?

    • Utility clamp

    • Iron ring

    • Buret clamp

    • Pinch clamp

    Correct Answer
    A. Utility clamp
    Explanation
    A utility clamp is a versatile tool used in laboratories to securely hold various objects such as test tubes, flasks, or burets. It consists of two adjustable jaws that can be tightened or loosened using a screw mechanism. The utility clamp is typically made of metal, providing strength and durability. It is commonly used in chemistry experiments or when handling delicate glassware to ensure stability and prevent accidents. The utility clamp is the correct answer because it accurately describes the tool depicted in the image.

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  • 12. 

    Which of the following statements about transition metal complexes is INCORRECT?

    • They often exhibit vibrant colors due to d-d electron transitions. 

    • They can have variable oxidation states. 

    • They typically form tetrahedral or square planar complexes. 

    • They can exhibit paramagnetism due to unpaired electrons.

    Correct Answer
    A. They typically form tetrahedral or square planar complexes. 
    Explanation
    While transition metal complexes can adopt tetrahedral or square planar geometries, they are more commonly found in octahedral geometries, where the central metal ion is coordinated to six ligands. This preference for octahedral coordination is due to factors like ligand field stabilization energy and steric considerations.

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  • 13. 
    What is this? - ProProfs

    What is this?

    • Evaporating dish

    • Crucible

    • Wing tip

    • Watch glass

    Correct Answer
    A. Watch glass
    Explanation
    A watch glass is a small, circular piece of glass that is slightly concave in shape. It is used in laboratories to hold small amounts of solid or liquid substances. The concave shape helps to prevent spillage and allows for easy observation of the contents. It is commonly used for covering beakers or evaporating dishes to prevent contamination or evaporation. The other options listed (evaporating dish, crucible, and wing tip) are not appropriate answers as they are unrelated to the given item.

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  • 14. 

    Long hair, dangling jewlery, and loose baggy clothing are a hazard and must be

    Correct Answer
    secured
    pulled back
    Explanation
    Long hair, dangling jewelry, and loose baggy clothing can pose a safety risk in various situations. They can get caught in machinery or equipment, causing accidents or injuries. Therefore, it is important to secure or pull back these items to minimize the chances of such incidents occurring. This can be done by tying up or securing long hair, removing or securing dangling jewelry, and wearing properly fitting clothing that is not loose or baggy. By taking these precautions, individuals can ensure their safety and prevent potential hazards.

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  • 15. 

    How do you dilute a strong acid?

    • Add a base to the acid

    • Add water to acid

    • Add acid to water

    • You can't

    Correct Answer
    A. Add acid to water
    Explanation
    To dilute a strong acid, it is important to add acid to water. This is because adding water to acid can cause a violent reaction due to the release of heat. By slowly adding acid to water while stirring, the heat generated can be dissipated more effectively, preventing any hazards. This method ensures a safer and controlled dilution process.

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  • 16. 

    Use a                      while heating any substances

    Correct Answer
    holder
  • 17. 

    Use the                             when evaporating hazardous solvents or materials

    Correct Answer
    Fume hood
    Explanation
    A fume hood is used when evaporating hazardous solvents or materials. It is a type of ventilation system that is designed to limit exposure to harmful fumes, vapors, or dusts. It works by drawing air away from the user and into the hood, which is then either filtered or exhausted to the outside. This helps to protect the user from inhaling or coming into contact with potentially dangerous substances.

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  • 18. 

    If too much air is present a                  noise will be heard

    Correct Answer
    roaring
    fluttering
    Explanation
    If too much air is present, it can cause a roaring noise or a fluttering noise. This is because an excess of air can create turbulence or vibrations, resulting in these types of sounds.

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  • 19. 

    When pouring a chemical from the stock bottle, pour with the                            side next to the container you are pouring into.

    Correct Answer
    unlabled
    Explanation
    The correct answer is "unlabeled" because the question is referring to pouring a chemical from a stock bottle, and it is important to pour the chemical with the unlabeled side next to the container you are pouring into. This is because the labeled side of the stock bottle may contain important information or warnings about the chemical, so it should not come into direct contact with the container or the substance being poured.

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  • 20. 

    Never heat stoppered                   

    Correct Answer
    liquids or solids
    solids or liquids
    Explanation
    The correct answer is "liquids or solids, solids or liquids". This answer suggests that both liquids and solids should not be heated when they are stoppered. This is because stoppering can create pressure buildup inside the container, which can be dangerous when heated. Therefore, it is important to remove the stopper before heating any liquid or solid to avoid any potential accidents or explosions.

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  • 21. 

    Describe what happens if the air supply on a Bunsen Burner is too low.

Quiz Review Timeline (Updated): Jan 9, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 09, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 19, 2009
    Quiz Created by
    Lexiem
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