A Trivia Quiz About Chemistry Pre-test

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  • 1/10 Questions

    Atoms must give up or take in electrons from its valence shell to fuse together.  

    • True
    • False
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About This Quiz

There are a total of ten questions on this exam, five multiple choice and five True/False items. For the multiple choice items, choose the answer which best answers the question or completes the statement. For the True/False items select True if the statement is true, or False if the statement is incorrect. A total of ten minutes will be provided to complete the exam, and each question is worth ten points. A minimum score of 70% is required to pass the exam. There will be no talking allowed during the test. Good luck.

Chemistry Quizzes & Trivia

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  • 2. 

    The body is composed of atoms.  

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because atoms are the basic building blocks of matter. All matter, including the human body, is made up of atoms. Atoms combine to form molecules, which then combine to form cells, tissues, organs, and ultimately, the entire body. Therefore, it can be concluded that the body is composed of atoms.

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  • 3. 

    Which component is enclosed by negative and positive charges, and is the simplest unit of matter?

    • Molecule

    • Atom

    • Cell

    • Proton

    Correct Answer
    A. Atom
    Explanation
    An atom is the simplest unit of matter that is composed of negatively charged electrons orbiting around a positively charged nucleus. The nucleus contains protons, which have a positive charge, and neutrons, which have no charge. The balance between the positive and negative charges within an atom makes it electrically neutral. Molecules, cells, and protons are not the simplest units of matter and do not fit the description provided in the question.

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  • 4. 

    The junction of atoms is dependent on the electrons located on the outer shell.  

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the junction of atoms, which refers to the bonding between atoms, is indeed dependent on the electrons located on the outer shell. The outer shell of an atom is also known as the valence shell, and it contains the valence electrons. These valence electrons are involved in the formation of chemical bonds, either by sharing, transferring, or receiving electrons. The number and arrangement of valence electrons determine an atom's reactivity and its ability to form bonds with other atoms. Therefore, the junction of atoms is directly influenced by the electrons present in the outer shell.

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  • 5. 

    When atoms become molecules, it does not need the positive/negative attraction to form bonds.   

    • True

    • False

    Correct Answer
    A. False
    Explanation
    When atoms become molecules, they do need positive/negative attraction to form bonds. This attraction is known as chemical bonding and it involves the sharing, transferring, or redistribution of electrons between atoms to achieve a more stable electron configuration. This attraction is necessary for the formation of covalent, ionic, or metallic bonds, which hold the atoms together in a molecule. Therefore, the statement that atoms do not need positive/negative attraction to form bonds is false.

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  • 6. 

    The electromagnetic attraction of an atom, is caused by the opposite charges in the nucleus and orbit.  

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The electromagnetic attraction of an atom is caused by the opposite charges in the nucleus and orbit. This is because the nucleus of an atom is positively charged, while the electrons in the orbit are negatively charged. Opposite charges attract each other, resulting in the electromagnetic attraction between the nucleus and the electrons. Therefore, the statement is true.

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  • 7. 

    Which of the following is the simplest unit of life?  

    • Proton

    • Atom

    • Cell

    • Molecule

    Correct Answer
    A. Cell
    Explanation
    The simplest unit of life is a cell. Cells are the basic building blocks of all living organisms and are responsible for carrying out essential functions such as growth, reproduction, and metabolism. Protons, atoms, and molecules are all smaller components that make up cells, but they are not considered the simplest unit of life.

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  • 8. 

    Cells are formed by the fusion of two or more __________.

    • Molecules

    • Elements

    • Atoms

    • Electrodes

    Correct Answer
    A. Molecules
    Explanation
    Cells are formed by the fusion of two or more molecules. Molecules are made up of atoms that are bonded together. When these molecules combine, they form the basic building blocks of cells, which are the fundamental units of life. Elements and electrodes are not directly involved in the formation of cells, making them incorrect options.

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  • 9. 

    The force which attracts the joining of atoms or molecules together is

    • The electromagnetic attraction between neutrons and electrons.

    • The electromagnetic attraction between protons and neutrons.

    • The electromagnetic attraction between electrons and neutrons.

    • The electromagnetic attraction between protons and electrons.

    Correct Answer
    A. The electromagnetic attraction between protons and electrons.
    Explanation
    The force that attracts the joining of atoms or molecules together is the electromagnetic attraction between protons and electrons. Protons have a positive charge, while electrons have a negative charge. Opposite charges attract each other, so the positive protons are attracted to the negative electrons, causing them to be held together in an atom or molecule. This electromagnetic force is responsible for the stability and structure of matter.

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  • 10. 

    What physical property of molecules is designed to allow one molecule to interact with another?

    • The number of atoms which the molecules are composed of.

    • The shape of the molecule because it influences or deters interactions among molecules.

    • The amount of neutrons that the molecules have within their nucleus will influence or inhibit molecule junctions.

    • The size of the molecules will influence or deter the fusion of molecules.

    Correct Answer
    A. The shape of the molecule because it influences or deters interactions among molecules.
    Explanation
    The shape of a molecule is designed to allow one molecule to interact with another. The arrangement of atoms within a molecule determines its shape, and this shape can influence or deter interactions among molecules. Different shapes can result in different types of interactions, such as bonding or repulsion, between molecules. Therefore, the shape of a molecule plays a crucial role in determining how it can interact with other molecules.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 02, 2010
    Quiz Created by
    Lilj3078
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