Balancing of Chemical Equation

Cards (15)

  • chemical notation - standard way of writing chemical formula.
  • coefficient - a numerical number attached in front of the chemical formula.
  • subscript - number written in the lower right side of the chemical formula.
  • parentheses - used to form subgroups of atoms within molecules.
  • Law of Conservation of Mass - states that no matter can be created or destroyed.
  • What are the coefficients needed to balance the chemical equation below?
    2, 3, 3, 1
  • Law of conservation of mass - State that the total mass of the reactant must be equal to the total mass in the product.
  • Which of the following set of coefficients would balance the given equation? Al + Fe(NO3)2 → Al(NO3)3 + Fe.
    2, 3, 2, 3
  • In the chemical formula Mg(NO3)2, the numerical coefficient is equal to:
    1
  • In a chemical reaction, what is the relationship between the total mass of the reactants and the total mass of the products?
    They must be equal.
  • In balancing a chemical equation, which of the following are you allowed to do?
    write coefficients
  • The reaction between sodium atom and chlorine gas forming table salt can be expressed in this equation, Na(s) + Cl2(g) → NaCI(s). To balance the equation, what are the coefficients needed in the given order for sodium, chlorine and table salt?
    2, 1, 2
  • To balance the equation NO2 → N2 + 02, what are the coefficients needed in the given order for nitrogen and oxygen?
    2, 1, 2
  • What type of reaction is represented by the following chemical equation? Pb(s) + FeSO4(aq) → PbSO4(s) + Fe(s)
    Single replacement
  • What general equation represents a decomposition reaction?
    ABA + B