WorksheetsChemical Equation Balance
Total questions: 10
Worksheet time: 5mins
What is the process of balancing a chemical equation with coefficients?
Adjust the coefficients of the reactants and products to balance the number of each type of atom on both sides of the equation.
Removing all coefficients from the equation
Adding more reactants to the equation
Doubling the number of products
In a chemical equation, what are the substances to the left of the arrow called?
Catalysts
Reactants
Products
Intermediates
In a chemical equation, what are the substances to the right of the arrow called?
products
reactants
ingredients
solutions
Why is it important to balance chemical equations?
To make the equations look more complicated
To create confusion among students
To waste time in chemistry class
To ensure the law of conservation of mass is obeyed.
What does the Law of Conservation of Mass state in relation to chemical equations?
Total mass of reactants > Total mass of products
Total mass of reactants = Total mass of products
Total mass of reactants < Total mass of products
Total mass of reactants = Total mass of reactants
Balance the chemical equation: H2 + O2 -> H2O
2H2 + O -> H2O
2H2 + O2 -> 2H2O
H2 + O2 -> H2O
H2O -> H2 + O2
Balance the chemical equation: Fe + O2 -> Fe2O3
Fe2O3 -> Fe + O2
Fe + O2 -> FeO
Fe2 + O3 -> Fe2O3
2Fe + 3O2 -> 2Fe2O3
Identify the reactants and products in the chemical equation: 2H2 + O2 -> 2H2O
H2O + O2 -> H2
2H2 + 2O2 -> 2H2O
Reactants: 2H2, O2; Products: 2H2O
2H2O + O2 -> 2H2
Identify the reactants and products in the chemical equation: NaCl + AgNO3 -> AgCl + NaNO3
Reactants: NaCl, AgCl; Products: AgNO3, NaNO3
Reactants: AgNO3, NaNO3; Products: NaCl, AgCl
Reactants: NaCl, AgNO3; Products: AgCl, NaNO3
Reactants: AgCl, NaNO3; Products: NaCl, AgNO3
Balance the chemical equation: C3H8 + O2 -> CO2 + H2O
C3H8 + 4O2 -> 3CO2 + 4H2O
C3H8 + O2 -> 2CO2 + 2H2O
C3H8 + 6O2 -> 3CO2 + 4H2O
C3H8 + 5O2 -> 3CO2 + 4H2O
