Physical Science Vocab Chapter 6

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Physical Science Vocab Chapter 6 - Quiz


multiple choice on chapter 6 physical science terms


Questions and Answers
  • 1. 

    The attractive force between oppositively charged ions.  *forms when electrons are transferred from one atom to another.

    • A.

      Ionic Bond

    • B.

      Chemical Bond

    • C.

      Metallic Bond

    • D.

      Covalent Bond

    Correct Answer
    A. Ionic Bond
    Explanation
    Ionic bonds form when electrons are transferred from one atom to another. In an ionic bond, one atom loses electrons and becomes positively charged (cation), while the other atom gains those electrons and becomes negatively charged (anion). The attraction between these oppositely charged ions creates a strong bond. This type of bond typically occurs between a metal and a non-metal, as metals tend to lose electrons and non-metals tend to gain electrons. Ionic bonds result in the formation of ionic compounds, which have high melting and boiling points and are often solid at room temperature.

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  • 2. 

    A reaction in which one element or radical takes the place of another element or radical in a compound.

    • A.

      Syntesis Reaction

    • B.

      Single-Displacement Reaction

    • C.

      Exothermic Reaction

    • D.

      Double-Displacement Reaction

    Correct Answer
    B. Single-Displacement Reaction
    Explanation
    A single-displacement reaction is a type of chemical reaction in which one element or radical replaces another element or radical in a compound. This reaction occurs when a more reactive element displaces a less reactive element from its compound. It is characterized by the transfer of an atom or group of atoms from one reactant to another. This reaction is also known as a substitution reaction.

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  • 3. 

    A substance or molecule that participates in a chemical reaction.

    • A.

      Free radical

    • B.

      Chemical structure

    • C.

      Product

    • D.

      Reactant

    Correct Answer
    D. Reactant
    Explanation
    A reactant is a substance or molecule that takes part in a chemical reaction. It undergoes a chemical change and is transformed into a product during the reaction. Reactants are essential for the reaction to occur and determine the outcome of the reaction. They are usually present in the beginning of the reaction and are consumed or used up in the process.

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  • 4. 

    The attractive force that holds atoms or ions together. (force that makes them want to come together)

    • A.

      Ionic Bond

    • B.

      Chemical bond

    • C.

      Metallic bond

    • D.

      Covalent bond

    Correct Answer
    B. Chemical bond
    Explanation
    A chemical bond is the attractive force that holds atoms or ions together. It is the force that makes them want to come together and form a stable molecule or compound. Chemical bonds can be classified into different types such as ionic bonds, metallic bonds, and covalent bonds, depending on the nature of the bond and the types of atoms or ions involved. In this case, the term "chemical bond" is a general term that encompasses all types of bonds, including ionic, metallic, and covalent bonds.

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  • 5. 

    A bond formed when atoms share one or more pairs of electrons.

    • A.

      Ionic bond

    • B.

      Chemical bond

    • C.

      Metalic bonds

    • D.

      Covalent bonds

    Correct Answer
    D. Covalent bonds
    Explanation
    Covalent bonds are formed when atoms share one or more pairs of electrons. In this type of bond, the electrons are shared between the atoms rather than being transferred from one atom to another. This sharing of electrons allows the atoms to achieve a stable electron configuration, resulting in a strong bond between the atoms. Covalent bonds are commonly found in molecules and compounds where nonmetals are involved.

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  • 6. 

    The oxidation reaction of an organic compound in which heat is released.

    • A.

      Single displacement reaction

    • B.

      Decomposition reactions

    • C.

      Combustion reaction

    • D.

      Exothermic reaction

    Correct Answer
    C. Combustion reaction
    Explanation
    A combustion reaction is the correct answer because it involves the oxidation of an organic compound and releases heat. Combustion reactions typically occur when a substance reacts with oxygen, producing carbon dioxide and water as byproducts. This process is exothermic, meaning it releases energy in the form of heat. Therefore, a combustion reaction is the most appropriate choice to describe the oxidation reaction of an organic compound that releases heat.

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  • 7. 

    A substance that forms in a chemical reaction.

    • A.

      Product

    • B.

      Reactant

    • C.

      Radical

    • D.

      Chemical structure

    Correct Answer
    A. Product
    Explanation
    In a chemical reaction, a product is formed as a result of the reaction. It is the substance that is produced or obtained at the end of the reaction. It is different from the reactants, which are the substances that undergo the reaction. A product can have a different chemical structure or properties compared to the reactants. Therefore, in the context of the given question, the correct answer is "product".

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  • 8. 

    The energy released when a chemical compound reacts to produce new compounds.

    • A.

      Chemical energy

    • B.

      Chemical equation

    • C.

      Bond length

    • D.

      Bond angle

    Correct Answer
    A. Chemical energy
    Explanation
    Chemical energy refers to the energy that is released or absorbed during a chemical reaction. When a chemical compound reacts to produce new compounds, the bonds between the atoms in the reactants are broken, and new bonds are formed in the products. This process involves the conversion of potential energy stored in the chemical bonds to other forms of energy, such as heat or light. Therefore, chemical energy is the correct answer as it accurately describes the energy released during a chemical reaction.

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  • 9. 

    The arrangement of the atoms in a molecule.

    • A.

      Product

    • B.

      Freee radical

    • C.

      Chemical structure

    • D.

      Reactant

    Correct Answer
    C. Chemical structure
    Explanation
    The term "chemical structure" refers to the arrangement of atoms in a molecule. It describes how the atoms are connected to each other and the overall shape of the molecule. This arrangement determines the molecule's properties and behavior in chemical reactions. The other options, such as product, free radical, and reactant, are related to specific aspects of chemical reactions but do not encompass the overall arrangement of atoms in a molecule.

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  • 10. 

    A bond formed by the attraction between positively charged metal ions and electrons around them.

    • A.

      Covalent bonds

    • B.

      Metalic bonds

    • C.

      Chemical bonds

    • D.

      Ionic bonds

    Correct Answer
    B. Metalic bonds
    Explanation
    Metallic bonds are formed by the attraction between positively charged metal ions and the surrounding electrons. In a metallic bond, the metal atoms lose their outer electrons to form positively charged ions, while the electrons are free to move throughout the structure, creating a "sea" of delocalized electrons. This allows for the high electrical and thermal conductivity observed in metals, as well as their malleability and ductility. Therefore, metallic bonds are the correct answer in this case.

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  • 11. 

    A chemical reaction that requires energy input.

    • A.

      Exothermic reaction

    • B.

      Combustion reaction

    • C.

      Single displacement reaction

    • D.

      Endothermic reaction

    Correct Answer
    D. Endothermic reaction
    Explanation
    An endothermic reaction is a chemical reaction that requires an input of energy in order to proceed. This means that the reaction absorbs heat from its surroundings, resulting in a decrease in temperature. In contrast, an exothermic reaction releases energy in the form of heat, a combustion reaction is a type of exothermic reaction that involves the rapid combination of a fuel with oxygen, and a single displacement reaction involves the exchange of one element or ion with another.

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  • 12. 

    An atom or a group of atoms that has one unpaired electron.

    • A.

      Free radical

    • B.

      Chemical structure

    • C.

      Reactant

    • D.

      Product

    Correct Answer
    A. Free radical
    Explanation
    A free radical is an atom or a group of atoms that has one unpaired electron. This unpaired electron makes the free radical highly reactive, as it seeks to pair up with another electron to achieve stability. Free radicals can participate in chemical reactions by donating or accepting electrons, which can lead to the formation of new chemical structures or the transformation of reactants into products.

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  • 13. 

    A representation of a chemical reaction that uses symbols to show the relationship between the reactants and products.

    • A.

      Chemical energy

    • B.

      Chemical equation

    • C.

      Bond length

    • D.

      Bond angle

    Correct Answer
    B. Chemical equation
    Explanation
    A chemical equation is a representation of a chemical reaction using symbols to show the relationship between the reactants and products. It provides information about the types and quantities of substances involved in the reaction. By balancing the equation, one can determine the stoichiometry of the reaction, which is crucial in understanding the amount of each substance required and produced. Chemical equations are an essential tool in chemistry for communicating and understanding chemical reactions.

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  • 14. 

    The distance between the nuclei of two bonded atoms.

    • A.

      Chemical equation

    • B.

      Chemical energy

    • C.

      Bond length

    • D.

      Bond angle

    Correct Answer
    C. Bond length
    Explanation
    The bond length refers to the distance between the nuclei of two bonded atoms. It represents the average distance at which the two atoms are most stable and can be measured experimentally. The bond length is influenced by various factors such as the types of atoms involved, the strength of the bond, and the presence of any surrounding molecules. It is an important parameter in understanding the properties and behavior of chemical compounds.

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  • 15. 

    A chemical reaction in which energy is released to the surrounding as heat.

    • A.

      Endothermic reaction

    • B.

      Combustion reaction

    • C.

      Exothermic reaction

    • D.

      Single-displacement reaction

    Correct Answer
    C. Exothermic reaction
    Explanation
    An exothermic reaction is a chemical reaction that releases energy to the surrounding as heat. This means that the products of the reaction have less energy than the reactants, and the excess energy is given off in the form of heat. In an exothermic reaction, the system loses energy and the surroundings gain energy. This is often accompanied by an increase in temperature. Examples of exothermic reactions include combustion reactions, where a fuel reacts with oxygen to produce heat and light, and many types of oxidation reactions.

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  • 16. 

    A reaction in which a single compound breaks down to form two or more simplier substances.

    • A.

      Single-displacement reaction

    • B.

      Double-displacement reaction

    • C.

      Syntesis reaction

    • D.

      Decomposition reaction

    Correct Answer
    D. Decomposition reaction
    Explanation
    A decomposition reaction is a type of reaction where a single compound breaks down into two or more simpler substances. This can occur through various processes such as heat, light, or the addition of a catalyst. In this type of reaction, the original compound is being broken apart into its constituent elements or simpler compounds.

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  • 17. 

    Any chemical change in which one species is oxidized (loses electrons) and another species is reduced (gains electrons)

    • A.

      Decomposition reactions

    • B.

      Oxidation-reduction reactions

    • C.

      Syntesis reactions

    • D.

      Single-displacement reaction

    Correct Answer
    B. Oxidation-reduction reactions
    Explanation
    Oxidation-reduction reactions involve a chemical change where one species loses electrons (oxidation) and another species gains electrons (reduction). This type of reaction is also known as a redox reaction. In these reactions, there is a transfer of electrons between different species, resulting in a change in their oxidation states. This process is essential in various biological and industrial processes, such as respiration, combustion, and electrochemical reactions. Therefore, oxidation-reduction reactions are the correct answer.

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  • 18. 

    Reaction in which two or more substances combine to form a new compound.

    • A.

      Oxidation reduction reaction

    • B.

      Decomposition reaction

    • C.

      Syntesis reaction

    • D.

      Double-displacement reaction

    Correct Answer
    C. Syntesis reaction
    Explanation
    A synthesis reaction is a type of chemical reaction where two or more substances combine to form a new compound. In this reaction, the reactants come together to create a more complex product. This can involve elements or compounds combining to form a single compound. In contrast, an oxidation-reduction reaction involves the transfer of electrons between reactants, a decomposition reaction involves the breakdown of a compound into simpler substances, and a double-displacement reaction involves the exchange of ions between reactants. Therefore, the correct answer is synthesis reaction.

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  • 19. 

    A reaction in which a gas, a solid precipitate or a molecular compound forms from the apperent exchange of atoms or ions between two compounds.

    • A.

      Double displacement reaction

    • B.

      Single displacement reaction

    • C.

      Syntesis reaction

    • D.

      Decomposition reaction

    Correct Answer
    A. Double displacement reaction
    Explanation
    A double displacement reaction is a type of reaction where two compounds exchange ions or atoms to form a gas, a solid precipitate, or a molecular compound. This reaction involves the apparent exchange of atoms or ions between the two compounds.

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  • 20. 

    The angle formed by two bonds to the same atom.

    • A.

      Reactant

    • B.

      Product

    • C.

      Bond length

    • D.

      Bond angle

    Correct Answer
    D. Bond angle
    Explanation
    The bond angle refers to the angle formed between two bonds that are connected to the same atom. It is a measure of the spatial arrangement of atoms in a molecule. The bond angle is determined by the repulsion between electron pairs around the central atom, which leads to the arrangement of bonds in a way that minimizes this repulsion. Therefore, the correct answer is bond angle.

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  • Current Version
  • Jan 17, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 16, 2009
    Quiz Created by
    Shudson
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