Unit 9: Reaction Review!

Which of the following apply to the law of conservation when it comes to balancing equations.
(Select all that apply!!!)

• matter cannot be created or destroyed

• reactants and products must have the same number of atoms for each element

• the mass of the reactants must equal the mass of the products

Ca + AlCl₃ --> Al + CaCl₂

In the equation above, what are the reactants?
(select all that apply)

• Ca

• AlCl₃

• Al

• Cl₂

Ca + AlCl₃ --> Al + CaCl₂

In the equation above, what are the products?
(select all that apply)

• Ca

• AlCl₃

• Al

• CaCl₂

AlCl₃ + Ca --> Al + CaCl₂

What are the coefficients for the above equation

• 2, 3, 2, 3

• 2, 3, 2, 3

• 3, 2, 2, 3

• 1, 2, 3, 3

Ca + AlCl₃ --> Al + CaCl₂

What type of chemical reaction is shown above?

• synthesis

• decomposition

• single displacement

• double displacement

• combustion

Al₂(SO4)₃ + NaOH -->  Na₂SO₄ + Al(OH)₃

What type of chemical reaction is shown above?

• synthesis

• decomposition

• single displacement

• double displacement

• combustion

HCl + NaOH  --> NaCl +H₂O

What type of chemical reaction is shown above?

• synthesis

• decomposition

• single displacement

• double displacement

• combustion

Na₂S + Br₂ --> S₈ + NaBr

What type of chemical reaction is shown above?

• synthesis

• decomposition

• single displacement

• double displacement

• combustion

Na + Cl₂ --> NaCl

What type of chemical reaction is shown above?

• synthesis

• decomposition

• single displacement

• double displacement

• combustion

Which type of chemical reaction has ionic compounds trading metals

AB + CD --> CB + AD

• synthesis

• decomposition

• single displacement

• double displacement

• combustion