Writing Chemical Equations Practice
8 months ago
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  • Question 1
    180 seconds
    Q.

    Which is the correct chemical equation for the following: Solid Zn reacts with silver (I) chloride to produce Zinc (II) chloride and silver metal

    answer choices

    Zn + AgCl → ZnCl2 + Ag

    ZnCl2 + Ag → Zn + AgCl

    ZnCl2 + Ag2 → Zn + AgCl

    Zn2Cl + Ag → Zn + AgCl

  • Question 2
    180 seconds
    Q.

    Which is the correct chemical equation for the following: Barium Chloride combined with sodium sulfide yields barium sulfide and sodium chloride

    answer choices

    BaCl + NaS → BaS+ NaCl

    BaCl2 + Na2S → BaS+ NaCl

    BaS+ NaCl → BaCl + NaS

    BaCl2 + Na2S → BaS+ NaCl2

  • Question 3
    60 seconds
    Q. What is the correct formula for Sodium Oxide?
    answer choices
    NaO
    NaO2
    Na2O
    Na2O2
  • Question 4
    60 seconds
    Q. Name the following ionic compound: BeCl2
    answer choices
    beryllium chlorine
    beryllium II chloride
    beryllium chloride
    beryllium dichloride
  • Question 5
    60 seconds
    Q. Which is NOT a diatomic molecule?
    answer choices
    Fluorine
    Nitrogen
    Boron
    Bromine
  • Question 6
    60 seconds
    Q.

    ___________________ are the elements or compounds that are formed in a chemical reaction.

    answer choices

    Polymers

    Bonds

    Reactants

    Products

  • Question 7
    30 seconds
    Q.

    Which part of the chemical equation is the product?

    C6H12O6 + 6O2 ---> 6CO2 + 6H2O

    answer choices

    C6H12O6 + 6O2

    6CO2 + 6H2O

  • Question 8
    60 seconds
    Q.

    Which type of chemical reaction is pictured?

    C6H12O6 + 6O2 ---> 6CO2 + 6H2O

    answer choices

    decomposition

    single replacement

    synthesis

    combustion

  • Question 9
    30 seconds
    Q. The reactants are on the left side of the chemical equation.
    answer choices
    True
    False
  • Question 10
    60 seconds
    Q. A chemical reaction is ___________________.
    answer choices
    when substances undergo changes that result in a new substance
    a characteristic of a substance that can be observed without changing the substance into another substance
    when substances undergo changes that alter their form or physical appearance
  • Question 11
    30 seconds
    Q. Select the pair of words that correctly displays the general FORMAT for writing CHEMICAL EQUATIONS.
    answer choices
    products  -->  reactants
    products  -->  products
    reactants  -->  products
    reactants  -->  reactants
  • Question 12
    60 seconds
    Q. How many hydrogen atoms are in this chemical formula: 
    answer choices
    4 hydrogen atoms
    1 hydrogen atom
    2 hydrogen atoms
    3 hydrogen atoms
  • Question 13
    30 seconds
    Q. Which of the following are products in the reaction below? 
    Hydrogen gas (H2) reacts with oxygen gas (O2) to produce water. 
    answer choices
    hydrogen gas
    water
    hydrochloric acid
    oxygen gas
  • Question 14
    30 seconds
    Q. Which of the following is a reactant in this equation? 
    Methane gas (CH4) reacts with Oxygen gas (O2) to produce  water and carbon dioxide gas (CO2).
    answer choices
    CO2
    CH4
    H2
    CH2
  • Question 15
    30 seconds
    Q.

    Which of the following is a reactant in the chemical reaction?

    Al(OH)3+ 3NaNO3---> Al(OH3)3 + 3NaOH

    answer choices

    NaNO3

    Al(OH3)3

    NaOH

    Al(OH)3

  • Question 16
    120 seconds
    Q. What is the correct formula for Sodium Oxide?
    answer choices
    NaO
    NaO2
    Na2O
    Na2O2
  • Question 17
    120 seconds
    Q. Name the following ionic compound: BeCl2
    answer choices
    beryllium chlorine
    beryllium II chloride
    beryllium chloride
    beryllium dichloride
  • Question 18
    60 seconds
    Q. What would be the proper chemical formula for combining Al3+ and Cl- :
    answer choices
    AlCl3
    Al3Cl
    AlCl
    Al3Cl3
  • Question 19
    60 seconds
    Q. The proper formula for magnesium hydroxide:
    answer choices
    MgOH
    Mg2OH
    Mg(OH)2
    Mg2OH2
  • Question 20
    60 seconds
    Q. The chemical formula for diphosphorous pentoxide is
    answer choices
    P5O2
    2P 5O
    5P 2O
    P2O5
  • Question 21
    60 seconds
    Q. Potassium sulfate is written as
    answer choices
    K4SO2
    P2(SO4)3
    K2SO4
    P4SO3
  • Question 22
    60 seconds
    Q. The formula for copper (II) hydroxide is
    answer choices
    Cu(II)OH
    Cu(OH)2
    Cu2OH
    CuOH2
  • Question 23
    60 seconds
    Q. The chemical formula for tin (IV) oxide is written
    answer choices
    Sn2O4
    Ti2O4
    SnO2
    TiO2
  • Question 24
    60 seconds
    Q. Ammonium phosphate is written as
    answer choices
    NH4PO4
    NH3PO4
    (NH4)3PO4
    NH-3PO+1
  • Question 25
    60 seconds
    Q. hexasulfur heptoxide is written as
    answer choices
    S6O7
    6S 7O
    7S 6O
    S7O6
  • Question 26
    60 seconds
    Q. Which type of reaction is Al  +  O2   → Al2O3?
    answer choices
    composition
    decomposition
    single replacement
    combustion
  • Question 27
    180 seconds
    Q.

    Which is the correctly balanced equaition?

    answer choices

    Cl2 + 2NaI → 2NaCl + I2

    Cl2 + 2NaI → NaCl + 2I2

    Cl2 + NaI → NaCl + I2

    2Cl2 + NaI → 2NaCl + I2

  • Question 28
    60 seconds
    Q. How many O's are in Al₂(SO₄)₃
    answer choices
    4
    12
    7
    24
  • Question 29
    180 seconds
    Q. Which of the following shows the correct way to balance the chemical equation?
    Fe + O2 -> Fe2O3
    answer choices
    4Fe + 3O2 -> 2Fe2O3
    2 Fe + 3O2 -> Fe2O6
    4 Fe + O6 -> 2Fe2O3
    None of the options are correctly balanced.
  • Question 30
    180 seconds
    Q. Which of the following reactions is balanced?
    answer choices
    2CH4 + O2 -> CO2 + H2O
    CH4 + 2O2 -> CO2 + H2O
    CH4 + 2O2 -> CO2 + 2H2O
    None of the chemical equations are balanced.
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