Chemistry Quiz: Element, Compound And Mixture! Trivia

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Chemistry Quiz: Element, Compound And Mixture! Trivia - Quiz


How much do you know about element compounds and mixture? This chemistry quiz will help you to understand element compounds and mixture. This quiz focuses on questions about compound elements or a substance comprised of only one kind of atom. This quiz also presents challenging equations that you must be able to solve. Remember to retrieve your certificate when you are finished.


Questions and Answers
  • 1. 

    CO

    • A.

      Element

    • B.

      Compound

    Correct Answer
    B. Compound
    Explanation
    CO is the chemical formula for carbon monoxide, which is a compound. A compound is a substance composed of two or more elements chemically combined in fixed proportions. In the case of carbon monoxide, it is made up of one carbon atom and one oxygen atom. Therefore, CO is a compound.

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  • 2. 

    OH

    • A.

      Element

    • B.

      Compound

    Correct Answer
    B. Compound
    Explanation
    The given answer "Compound" is correct because compounds are substances that are made up of two or more different elements chemically bonded together. In this case, "OH" is the chemical formula for the hydroxide ion, which consists of the element oxygen (O) and the element hydrogen (H) bonded together. Therefore, "OH" is a compound.

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  • 3. 

    MgO

    • A.

      Element

    • B.

      Compound

    Correct Answer
    B. Compound
    Explanation
    The given answer is "Compound" because MgO is a combination of two elements, magnesium (Mg) and oxygen (O), which are chemically bonded together. Compounds are substances composed of two or more different elements in fixed ratios, and MgO fits this definition as it is made up of magnesium and oxygen atoms in a 1:1 ratio. Therefore, it is classified as a compound rather than a single element.

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  • 4. 

    A substance made up of only one type of atom.

    • A.

      Element

    • B.

      Compound

    • C.

      Mixture

    Correct Answer
    A. Element
    Explanation
    An element is a substance made up of only one type of atom. This means that all the atoms in an element have the same number of protons in their nucleus. Elements are the building blocks of matter and cannot be broken down into simpler substances by chemical means. Examples of elements include hydrogen, oxygen, and carbon.

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  • 5. 

    Two or more different elements that are chemically bonded together.

    • A.

      Element

    • B.

      Compound

    • C.

      Mixture

    Correct Answer
    B. Compound
    Explanation
    A compound is formed when two or more different elements chemically combine together. This means that the atoms of the elements are rearranged and bonded in a specific way to form a new substance with different properties from the original elements. Compounds have a fixed composition and can only be separated into their individual elements through chemical reactions. Therefore, the correct answer is compound.

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  • 6. 

    Two or more elements or compounds that have been physically combined but not permanently bonded together.

    • A.

      Element

    • B.

      Compound

    • C.

      Mixture

    Correct Answer
    C. Mixture
    Explanation
    A mixture is a combination of two or more elements or compounds that are physically combined but not permanently bonded together. In a mixture, the substances retain their individual properties and can be separated by physical means, such as filtration or evaporation. This is different from a compound, where elements are chemically bonded together, and an element, which cannot be broken down into simpler substances. Therefore, the correct answer is mixture.

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  • 7. 

    How many atoms are in the molecule AgNO3?

    • A.

      2

    • B.

      3

    • C.

      4

    • D.

      5

    Correct Answer
    D. 5
    Explanation
    count the little numbers:)

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  • 8. 

    Sodium (Na) is considered an element while sodium chloride (NaCl) is considered a compound.  This is because of sodium chloride 

    • A.

      Is solid at room temperature

    • B.

      Is used to flavor foods

    • C.

      Made of two different elements

    • D.

      Made from the same type of atoms

    Correct Answer
    C. Made of two different elements
    Explanation
    Sodium chloride is considered a compound because it is made of two different elements, sodium (Na) and chlorine (Cl). Compounds are formed when two or more different elements chemically combine. In this case, sodium and chlorine atoms combine to form sodium chloride. Therefore, it is not considered an element like sodium, which is made up of only one type of atom.

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  • 9. 

    Which substance is not classified as an element?

    • A.

      Iron

    • B.

      Lead

    • C.

      Steel

    • D.

      Copper

    Correct Answer
    C. Steel
    Explanation
    Steel is not classified as an element because it is not a pure substance. It is an alloy made up of iron and carbon, as well as other elements in smaller quantities. Elements, on the other hand, are pure substances that cannot be broken down into simpler substances by chemical means. Iron, lead, and copper are all elements because they consist of only one type of atom.

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  • 10. 

    How many different elements are in the chemical reaction below? ZnCl2  +  Mg2SO4  -->  ZnSO4  +  MgCl2

    • A.

      2

    • B.

      4

    • C.

      5

    • D.

      8

    Correct Answer
    C. 5
    Explanation
    remember to count the capital letters:)

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 21, 2018
    Quiz Created by
    Etate
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