Gr 10 Physical Sciences Ch 10: Conservation of atoms and mass in reactions
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Questions and Answers

What is the smallest building block of matter?

  • Atom (correct)
  • Molecule
  • Element
  • Compound

    • Which type of compound is formed through covalent bonding?

  • Ionic Compound
  • Metallic Compound
  • Molecular Compound (correct)
  • Noble Gas Compound

    • What is the type of bond that forms between metals and non-metals?

  • Metallic Bond
  • Covalent Bond
  • Hydrogen Bond
  • Ionic Bond (correct)

    • Which of the following is an example of a metallic compound?

    <p>Copper (Cu) (C)</p> Signup and view all the answers

    What is the characteristic of noble gases?

    <p>They exist individually without bonding (C)</p> Signup and view all the answers

    What is the characteristic of covalent molecular structures?

    <p>They consist of relatively small molecules (D)</p> Signup and view all the answers

    What is the type of bond that forms between non-metal atoms?

    <p>Covalent Bond (D)</p> Signup and view all the answers

    What determines the properties of a material?

    <p>Both the type and arrangement of atoms in a material (D)</p> Signup and view all the answers

    What is the molecular formula of carbon dioxide?

    <p>CO₂ (A)</p> Signup and view all the answers

    What type of bond holds together the lattice structure of metallic networks?

    <p>Metallic bonds (D)</p> Signup and view all the answers

    What is the primary purpose of a structural formula?

    <p>To show the arrangement of atoms within a molecule (B)</p> Signup and view all the answers

    Which type of molecular model is most useful for understanding the spatial arrangement and geometry of molecules?

    <p>Space-Filling Models (A)</p> Signup and view all the answers

    What is an example of a compound that exists as a giant repeating lattice structure?

    <p>Sodium chloride (NaCl) (B)</p> Signup and view all the answers

    What is the term for the simplest ratio of atoms in a compound?

    <p>Empirical formula (D)</p> Signup and view all the answers

    Which type of network structure is characterized by a lattice of ions held together by ionic bonds?

    <p>Ionic network structures (B)</p> Signup and view all the answers

    What is the purpose of a chemical formula?

    <p>To provide a concise way to describe a compound using element symbols (D)</p> Signup and view all the answers

    What type of molecular model shows bonds between atoms as 'sticks', often colored to represent different atoms?

    <p>Wireframe or Stick Models (B)</p> Signup and view all the answers

    Which type of molecule is represented by a molecular formula that indicates the exact number of each type of atom?

    <p>Covalent molecular structures (B)</p> Signup and view all the answers

    What is the primary reason that atoms rarely exist in isolation?

    <p>They have a natural tendency to bond with other atoms. (C)</p> Signup and view all the answers

    What do the atoms in a compound always combine in?

    <p>Definite proportions (C)</p> Signup and view all the answers

    What is the type of bond that holds together the atoms in a molecular compound?

    <p>Covalent bond (C)</p> Signup and view all the answers

    What is the characteristic of the atoms in a metallic compound?

    <p>They lose their outer electrons (D)</p> Signup and view all the answers

    What is true about the molecules in a covalent molecular structure?

    <p>They exist and interact as separate entities (C)</p> Signup and view all the answers

    What determines the properties of a material at the microscopic level?

    <p>The arrangement and type of atoms (C)</p> Signup and view all the answers

    What is the main difference between a compound and a molecule?

    <p>A compound consists of two or more different atoms, while a molecule is a group of atoms of the same type (C)</p> Signup and view all the answers

    What is the general term used to describe the three main types of compounds?

    <p>Molecular, ionic, and metallic compounds (C)</p> Signup and view all the answers

    What is a unique feature of buckminsterfullerene?

    <p>It consists of 60 carbon atoms arranged in a spherical shape (C)</p> Signup and view all the answers

    What is the main difference between a molecular formula and an empirical formula?

    <p>A molecular formula indicates the exact number of each type of atom, while an empirical formula shows the simplest ratio (B)</p> Signup and view all the answers

    What is the primary purpose of a space-filling model?

    <p>To depict the molecule's overall shape and size (B)</p> Signup and view all the answers

    What type of bond is characteristic of covalent network structures?

    <p>Covalent bond (C)</p> Signup and view all the answers

    What is a characteristic of metallic network structures?

    <p>They exist as giant repeating lattice structures (B)</p> Signup and view all the answers

    What is the term for the way atoms are arranged in a molecule?

    <p>Structural formula (C)</p> Signup and view all the answers

    What type of molecular model is most useful for understanding the arrangement and shape of molecules?

    <p>All of the above (D)</p> Signup and view all the answers

    What is the term for the simplest ratio of atoms in a compound?

    <p>Empirical formula (D)</p> Signup and view all the answers

    What type of molecular structure is characterized by a lattice of ions held together by ionic bonds?

    <p>Ionic network structure (B)</p> Signup and view all the answers

    What is the primary purpose of a ball and stick model?

    <p>To depict the spatial arrangement and geometry of molecules (B)</p> Signup and view all the answers

    What is the primary reason that materials exhibit different properties?

    <p>The type and arrangement of atoms in the material (D)</p> Signup and view all the answers

    Which of the following compounds is formed through the transfer of electrons?

    <p>Sodium chloride (NaCl) (B)</p> Signup and view all the answers

    What is the characteristic of the atoms in noble gases?

    <p>They exist in isolation (D)</p> Signup and view all the answers

    Which type of compound is formed through the sharing of electrons?

    <p>Molecular compounds (A)</p> Signup and view all the answers

    What is the characteristic of compounds?

    <p>They consist of two or more different atoms (C)</p> Signup and view all the answers

    What is the primary characteristic of covalent molecular structures?

    <p>They exist as separate entities (B)</p> Signup and view all the answers

    What is the characteristic of the bonds in metallic compounds?

    <p>They are formed through metallic bonding (C)</p> Signup and view all the answers

    How do atoms in a compound combine?

    <p>In definite proportions (A)</p> Signup and view all the answers

    What is the characteristic of covalent network structures?

    <p>They consist of atoms bonded covalently in a continuous lattice. (C)</p> Signup and view all the answers

    What is the purpose of a structural formula?

    <p>To show the arrangement of atoms within a molecule. (C)</p> Signup and view all the answers

    Which type of molecular model is most useful for understanding the spatial arrangement and geometry of molecules?

    <p>Space-filling model. (B)</p> Signup and view all the answers

    What is the term for the way atoms are arranged in a molecule?

    <p>Molecular structure. (A)</p> Signup and view all the answers

    Which type of compound is buckminsterfullerene?

    <p>Covalent molecular structure. (A)</p> Signup and view all the answers

    What is the main difference between a molecular formula and an empirical formula?

    <p>Molecular formula indicates the exact number of each type of atom, while empirical formula represents the simplest ratio. (D)</p> Signup and view all the answers

    What is the characteristic of ionic network structures?

    <p>They consist of a lattice of ions held together by ionic bonds. (C)</p> Signup and view all the answers

    What is the primary purpose of a chemical formula?

    <p>To indicate the exact number of each type of atom in a molecule. (B)</p> Signup and view all the answers

    What is the characteristic of metallic network structures?

    <p>They exist as giant repeating lattice structures with metallic bonds. (A)</p> Signup and view all the answers

    What type of molecular model shows bonds between atoms as 'sticks', often colored to represent different atoms?

    <p>Wireframe or stick model. (B)</p> Signup and view all the answers

    What is the primary reason why atoms in a compound always combine in definite proportions?

    <p>To exhibit unique properties (D)</p> Signup and view all the answers

    Which of the following statements is true about the atoms in a molecular compound?

    <p>They share electrons to form covalent bonds (B)</p> Signup and view all the answers

    What is the primary characteristic of the bonds in covalent network structures?

    <p>They are strong and rigid (A)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of compounds?

    <p>They are composed of only one type of atom (D)</p> Signup and view all the answers

    What determines the properties of a material at the atomic level?

    <p>The type and arrangement of atoms in the material (B)</p> Signup and view all the answers

    Which of the following statements is true about the atoms in a metallic compound?

    <p>They are characterized by a lattice of positive ions (B)</p> Signup and view all the answers

    What is the primary reason why materials exhibit different properties?

    <p>The type and arrangement of atoms in the material (A)</p> Signup and view all the answers

    Which of the following is a characteristic of buckminsterfullerene?

    <p>It is a molecular compound formed through covalent bonds (D)</p> Signup and view all the answers

    What is the primary characteristic of a buckminsterfullerene molecule?

    <p>It has a spherical shape with 60 carbon atoms arranged in a continuous lattice. (D)</p> Signup and view all the answers

    What is the main difference between a wireframe model and a ball and stick model?

    <p>The spatial perspective they provide. (C)</p> Signup and view all the answers

    What is the purpose of an empirical formula in representing network structures?

    <p>To indicate the simplest ratio of atoms in a compound. (C)</p> Signup and view all the answers

    What is the characteristic of the bonds in covalent network structures?

    <p>They are strong and extensive. (B)</p> Signup and view all the answers

    What is the primary purpose of a space-filling model in representing molecular structures?

    <p>To depict the spatial arrangement and geometry of molecules. (B)</p> Signup and view all the answers

    What is the characteristic of the atoms in a metallic compound?

    <p>They are bonded through metallic bonds. (C)</p> Signup and view all the answers

    What is the primary purpose of a chemical formula in representing molecular structures?

    <p>To provide a concise way to describe a compound. (A)</p> Signup and view all the answers

    What is the characteristic of the bonds in ionic network structures?

    <p>They are held together by ionic bonds. (C)</p> Signup and view all the answers

    What is the primary purpose of a structural formula in representing molecular structures?

    <p>To show the arrangement of atoms within a molecule. (A)</p> Signup and view all the answers

    What is the characteristic of the atoms in a covalent molecular structure?

    <p>They are bonded covalently in a discrete molecule. (C)</p> Signup and view all the answers

    What is the primary characteristic of metallic network structures that contributes to their unique properties?

    <p>The lattice structure of atoms bonded through metallic bonds (C)</p> Signup and view all the answers

    What is the primary purpose of using empirical formulas to represent network structures?

    <p>To represent the simplest ratio of atoms in the compound (B)</p> Signup and view all the answers

    Which type of molecular model is most useful for understanding the spatial arrangement and geometry of molecules?

    <p>Space-filling models (A)</p> Signup and view all the answers

    What is the characteristic of covalent network structures that distinguishes them from other types of network structures?

    <p>Atoms bonded covalently in a continuous lattice (A)</p> Signup and view all the answers

    What is the primary reason for using molecular formulas to represent molecules?

    <p>To indicate the exact number of each type of atom in a molecule (C)</p> Signup and view all the answers

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