types of chemical reactions Flashcards
(12 cards)
what are the 5 main types of chemical reactions?
synthesis/combination, decomposition, single displacement, double displacement and combustion.
what is a synthesis reaction?
a reaction where two or more substances combine to form a single product.
A + B โ AB
what type of reaction is this?
2Hโ + Oโ โ 2HโO
synthesis/combination reactions
what is a decomposition reaction?
a reaction where one compound breaks down into two or more simpler substances.
AB โ A + B
what type of reaction is this?
2HโOโ โ 2HโO + Oโ
decomposition reaction
what is a single displacement reaction?
a reaction where one element replaces another in a compound.
A + BC โ AC + B
what type of reaction is this?
Zn + CuSOโ โ ZnSOโ + Cu
single replacement reaction
what is a double displacement reaction?
a reaction where two compounds exchange ions to form two new compounds.
AB + CD โ AD + CB
what type of reaction is this?
AgNOโ + NaCl โ AgCl + NaNOโ
double displacement reaction
what is a combustion reaction?
a reaction where a hydrocarbon reacts with oxygen to produce COโ and HโO (usually releases heat/light).
CโHแตง + Oโ โ COโ + HโO
what type of reaction is this?
CHโ + 2Oโ โ COโ + 2HโO
combustion reaction
how can you identify a precipitation reaction?
a type of double displacement where one product is an insoluble solid (precipitate).
