Bohr-Rutherford Diagrams and Ions Quiz
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Questions and Answers

Which of the following formulas represents an ionic compound?

  • CH₄
  • N₂O₃
  • SF₆
  • MgCl₂ (correct)
  • Which of these compounds is composed of two nonmetal elements?

  • Cu₂O
  • Pb(NO₃)₂
  • Be₃P₂
  • CO (correct)
  • Which of the following compounds, when dissolved in water, will conduct electricity?

  • SnS
  • H₂O₂
  • Na(OH) (correct)
  • CH₄
  • Which formula represents a compound that contains a polyatomic ion?

    <p>CaCO₃ (B)</p> Signup and view all the answers

    What is the valence charge of a sulfur ion?

    <p>-2 (D)</p> Signup and view all the answers

    Which of the following is a binary acid?

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

    Which of the following ions has a +3 valence charge?

    <p>Iron (III) (B)</p> Signup and view all the answers

    What is the valence charge of an ion formed from an alkaline earth metal?

    <p>+2 (C)</p> Signup and view all the answers

    What is the valence charge of the metal ion in $Fe_2O_3$?

    <p>+3 (B)</p> Signup and view all the answers

    What type of reaction is represented by Pb(NO₃)₂ + Na₂SO₄ → PbSO₄ + NaNO₃?

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

    Which of the following is a product of the reaction between strontium hydroxide and lead (II) bromide?

    <p>SrBr₂ (A)</p> Signup and view all the answers

    What type of reaction is the combustion of propane (C₃H₈) with oxygen?

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

    What are the products of the reaction between aluminum iodide and bromine?

    <p>AlBr₃ + I₂ (C)</p> Signup and view all the answers

    Which of the given reactions is a decomposition reaction?

    <p>NaN₃ → Na + N₂ (A)</p> Signup and view all the answers

    Which of the following reactions would be classified as a single displacement reaction?

    <p>copper (II) chloride + aluminum → aluminum chloride + copper (B)</p> Signup and view all the answers

    What are the products when glucose reacts with oxygen?

    <p>CO₂ + H₂O (B)</p> Signup and view all the answers

    What type of reaction is the combination of lithium with oxygen?

    <p>Synthesis (B)</p> Signup and view all the answers

    Flashcards

    Valence Charge

    The charge of an ion determined by how many electrons it has gained or lost.

    Polyatomic Ion

    A group of atoms that act together as a single unit with a charge.

    Multivalent Metal

    A metal that can have multiple possible valence charges.

    Acid

    A compound that releases hydrogen ions (H+) in solution.

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    Ionic Compound

    A compound formed when a metal and a non-metal combine.

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    What does the symbol (aq) indicate?

    A symbol that indicates a substance is dissolved completely in water. The substance is typically a solid or a gas, and its particles have become evenly dispersed throughout the solution.

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    What is a word equation?

    A chemical equation that shows the reactants and products as words.

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    What is a balanced chemical equation?

    A chemical equation that shows the reactants and products as chemical formulas, and is balanced to ensure the same number of atoms of each element on both sides of the equation.

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    What is balancing a chemical equation?

    The process of changing the coefficients in a chemical equation to ensure that the number of atoms of each element on the reactants side of the equation is equal to the number of atoms of that element on the products side of the equation.

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    What are reactants?

    The substances that are present before a chemical reaction takes place.

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    Decomposition Reaction

    A chemical reaction where a single reactant breaks down into two or more products.

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    Synthesis Reaction

    A chemical reaction where two or more reactants combine to form a single product.

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    Single Displacement Reaction

    A chemical reaction where a more reactive element replaces a less reactive element in a compound.

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    Double Displacement Reaction

    A chemical reaction where the positive and negative ions of two reactants switch partners to form two new products.

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    Combustion Reaction

    A chemical reaction that involves a substance reacting with oxygen to produce heat and light.

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    Neutralization Reaction

    A chemical reaction between an acid and a base, producing salt and water.

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    Cellular Respiration

    The process by which cells break down glucose in the presence of oxygen to produce energy (ATP), carbon dioxide, and water.

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    Chemical Reaction

    A chemical reaction that changes the arrangement of atoms within molecules, but not the types of atoms present.

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    Study Notes

    Bohr-Rutherford Diagrams and Valence Charges

    • Bohr-Rutherford diagrams are used to illustrate the arrangement of electrons around an atom's nucleus.
    • Valence charge refers to the ionic charge an atom gains or loses in order to achieve a stable electron configuration
    • Students are to draw diagrams and determine the valence charge of ions for specific elements (e.g., sodium, sulfur, aluminum, fluorine).

    Ions and Valence

    • Ions are atoms that have gained or lost electrons, resulting in a positive or negative charge.
    • Valence is the combining power of an element, often reflected in the ionic charge.
    • Students should identify the valence of various ions (e.g., potassium, oxide, iron (III), phosphorus, carbonate, ammonium, chloride, silver, hydroxide, sulfate).

    Acids and Compounds

    • Compounds that are acids, along with their names, are to be identified via a wavy underline.
    • Polyatomic ions and their formulas and valence charges are to be identified via a double underline on the compounds
    • Multivalent metals require a star next to the compound
    • Formulas for non-polyatomic/non-multivalent-metal compounds are to be written.
    • (aq) beside a formula for an acid means it's dissolved in water (aqueous).

    Differences Between Molecular and Ionic Compounds

    • Ionic compounds conduct electricity, while molecular compounds do not.
    • Ionic compounds dissolve in water, molecular compounds may or may not.
    • Ionic compounds have a crystal structure; molecular compounds don't.
    • Ionic compounds form from a metal and a nonmetal, molecular from two nonmetals.

    Balancing Chemical Equations

    • Students need to write the word equation and balance equations for given skeleton chemical equations.
    • Examples include reactions involving lead (II) nitrate and sodium sulfate, forming lead sulfate and sodium nitrate.

    Chemical Reactions and Types

    • Students must identify types of chemical reactions (e.g., synthesis, decomposition, combustion, single displacement, double displacement, neutralization).
    • Various examples of reactions, including those involving magnesium, aluminum, copper, propane, calcium carbonate etc. have various products.
    • The study should involve synthesis reactions, predicting products, and identifying cellular respiration.

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    Related Documents

    SNC2D Chemistry Review PDF

    Description

    Test your understanding of Bohr-Rutherford diagrams and the concept of valence charges in ions. This quiz covers drawing diagrams for elements and identifying the valence of various ions, as well as recognizing acids and compounds. Perfect for students looking to reinforce their chemistry knowledge.

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