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Quarter 4 Module 4 - Predicting Products and Balancing Chemical Equations

Quiz by Keith Angeline Alejandro

Grade 10
Science
Philippines Curriculum: Grades K-10 (MELC)

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10 questions
Show answers
  • Q1

    Which is NOT TRUE about the Laws of Conservation of Mass and Matter.

    I. The mass of raw materials is not equal to the mass of the product.

    II. There is a change in the type of elements before and after the reaction.

    III. The mass and type of atoms of the reactant/s are not the same as the mass and type of atoms present in the product/s.

    II and II

    I only

    I and II

    I, II, III

    120s
  • Q2

    In the equation 2FeSO4(s) + Heat → Fe2O3(s) + SO2 (g)+ SO3(g)

    the equation is balanced.

    there are more elements on the product side.

    the mass of the product is greater.

    there are more elements on the reactant sides.

    120s
  • Q3

    Based on this unbalanced equation CaCO3 -> ____+ CO2, what would be the other product?

    CO

    O2

    CaO

    C

    120s
  • Q4

    What are the possible products when two aqueous ionic solution combine chemically?

    I. Water

    II. Gas

    III. An insoluble solid

    III only

    I only

    I, II, III

    II only

    120s
  • Q5

    The products derived from a combustion reaction are _____.?

    CO2 + H2O

    CO2 + O2

    C + H2O

    CO2 + H2

    120s
  • Q6

    Magnesium has an oxidation state of +2 and oxygen has -2. What would be the product, if these ions are combined?

    MgO(s).

    MG3O2(s).

    Mg3O(s).

    Mg2O2(s).

    120s
  • Q7

    What would NOT indicate that the chemical equation is balanced?

    The atoms in the reactants are lesser in number compared to the products.

    The type and numbers of atoms are the same on both reactants and products sides.

    The type of atoms in the reactants is always the same as the type of atoms in the products.

    The sum of their masses is equal for both the reactants and products.

    120s
  • Q8

    If the products of a double displacement reaction are AgCl(s) + NaNO3(aq), the reactants must be ____.

    AgNO2 (aq)+ NaCl(s)

    Ag4NO3(aq) + NaCl(s)

    Ag2NO3(aq) + NaCl(s).

    AgNO3(aq) + NaCl(s)

    120s
  • Q9

    The other product for this equation 2 HCl(aq) + Zn(s) → ZnCl2(aq) + ____is

    H2(g).

    H2O (g)

    Cl2(g).

    H2O (l).

    120s
  • Q10

    Predict the products of this equation MgCl2 + I2 →?

    Both A and B

    No Reaction

    MgCl2(s) + I2 → MgI2 (s) + Cl2 (s)

    MgCl2(s) + I2 → MgCl2(s) + I(s)

    120s

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