Chemical Reactions

Question 1

Combination or Synthesis Reaction type

Answer 1

• e.g, a boy and a girl come to the dance by themselves and end up dnacing with each other all night
• when a metal is in its elemental state and a non-metal also in its elemental state for form a compound
• A + B -> AB

Question 2

Decomposition Reaction type

Answer 2

• e.g, a boy and a girl come to the dance together as a couple, but they get into a fight and leave by themselves
• when an ionic compound (metal + non-metal) splits. the metal and non-metal are now seperated.
• AB -> A + B

Question 3

Single Displacement Reaction Type

Answer 3

• e.g, a boy and a girl come together to the dance, but one of them finds a new person to dance with and the other person is left by themselves
• when an ionic compound interacts with a metal or non-metal. forms a new compound and other is left on it’s own.
• AB + C -> A + CB

Question 4

Double Displacement Reaction Type

Answer 4

• e.g, Two couples come to the dance together bu end up switching dates
• when two ionic compounds interacts with and form two new compounds
• AB + CD -> AD + CB

Question 5

Types of Reactions

Answer 5

• Double Displacement (NaCl + AgNO3 -> AgCl + NaNO3)
• Combination (2H2 + 02 -> 2H2O)
• Single Displacement (KBr + I2 -> Ki + Br2)
• Decomposition (BF4 -> B + 2F2)

Question 6

Precipitation Reactions

Answer 6

• double displacement
• two aqueous solutions mixed
• forms a product that is a solid (known as a percipitate)
• ## can tell if there are two ionic compounds (both reactants are aq and a product is a solid)