Types of Reactions + Review

Identify the type of reaction:

Al + HCl --> AlCl₃ + H₂

• Synthesis/Combination

• Decomposition

• Combustion

• Single Replacement

• Double Replacement

Identify the type of reaction:

2Fe + 3Cl₂ --> 2FeCl₃

• Synthesis/Combination

• Decomposition

• Combustion

• Single Replacement

• Double Replacement

Identify the type of reaction:

OF₂ --> O₂ + F₂

• Synthesis/Combination

• Decomposition

• Combustion

• Single Replacement

• Double Replacement

Which is Chemical Equation is Balanced?

• CH₄+O₂------CO₂+2H₂O
• H₂+O₂-----2H₂O₄
• 4Al+3O₂-----2Al₂O₃

Predict the products of the following equation.

CuCl₂ + H₂S ---->

• CuS(s) + HCl(aq)

• Cu₂S(s) + HCl(aq)

• No reaction

• CuS(s) + HCl(s)

Predict the products of the following equation.

MgCl₂ + Ag(NO₃) ---->

• AgCl(s) + Mg(NO₃)₂(aq)

• No Reaction

• AgCl(aq) + Mg(NO₃)₂(s)

• AgCl(s) + MgNO₃(aq)

Which side of a chemical equation is the product side?

• Left (before the arrow)
• Right (after the arrow)

What does the Law of Conservation of Mass state?

• Matter cannot be gained or lost in a chemical reaction.
• Matter can only be lost in a chemical reaction.
• Matter can only be gained in a chemical reaction.
• Matter can be gained and lost in a chemical reaction. 

Balance this equation-
__P₄ + __O₂ --> __P₂O₃

• it is already balanced
• 2, 1, 3
• 1, 2, 3
• 1, 3, 2

When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced

• charge
• subscript
• random number
• coefficient