WorksheetsBalancing and Identifying Chemical Reactions
Total questions: 15
Worksheet time: 15mins
Which equation is balanced?
PbO2 + 2H2
SO2 + H20 --> H2SO4
2Na + 2H2O --> 2NaOH + H2
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
2,6,3,2
it's already balanced
4,12,3,4
2,1,4,5
Reactions that have hydrocarbons (CH4) and oxygen as reactants and carbon dioxide and water as products
Conservation of Mass
combustion
double replacement
decomposition
When two or more substances combine to form a more complex substance
compound
double replacement
synthesis
catalyst
Breaks down compounds into simpler products. Starts with one reactant and ends with 2 or more products
decomposition
synthesis
combustion
single replacement
One compound and a free element that recombine to yield a new compound and a new free element
combustion
synthesis
decomposition
single replacement
Starts with two compounds as reactants, that recombine to form two new compounds as products
compound
catalyst
combustion
double replacement
Which type of chemical reaction is this:
Mg + O2 ------- MgO
synthesis
decomposition
combustion
single replacement
Which type of chemical reaction is this:
HgO ------- Hg + O
synthesis
double replacement
combustion
decomposition
Which type of chemical reaction is this:
C2H4 + 3O2 -------- 2CO2 + 2H2O
double replacement
decomposition
combustion
synthesis
Which type of chemical reaction is this:
FeCl2 + K2S --------- FeS + 2KCl
synthesis
double replacement
combustion
single replacement
Which type of chemical reaction is this:
3Fe + 4H2O -------- Fe3O4 + 4H2
synthesis
single replacement
decomposition
double replacement
