WorksheetsUnit 5 Review - Chemical Reactions
Total questions: 15
Worksheet time: 12mins
What coefficients correctly balance the equation below? BE SURE TO WRITE IT AS JUST NUMBERS, WITH NO COMMAS OR SPACES IN BETWEEN:
___CaCl2 + ___Ga2(SO3)3 ---> ___CaSO3 + ___GaCl3
(a)
What coefficients correctly balance the equation below? BE SURE TO WRITE IT AS JUST NUMBERS, WITH NO COMMAS OR SPACES IN BETWEEN:
___K2O + ___H2O ---> ___KOH
(a)
What coefficients correctly balance the equation below? BE SURE TO WRITE IT AS JUST NUMBERS, WITH NO COMMAS OR SPACES IN BETWEEN:
___C4H8 + ___O2 ---> ___CO2 + ___H2O
(a)
What coefficients correctly balance the equation below? BE SURE TO WRITE IT AS JUST NUMBERS, WITH NO COMMAS OR SPACES IN BETWEEN:
___Fe2O3 ---> ___Fe + ___O2
(a)
What coefficients correctly balance the equation below? BE SURE TO WRITE IT AS JUST NUMBERS, WITH NO COMMAS OR SPACES IN BETWEEN:
___Mg + ___Al(NO3)3 ---> ___Mg(NO3)2 + ___Al
(a)
What type of chemical reaction is shown in the skeleton equation below?
___Mg + ___Al(NO3)3 ---> ___Mg(NO3)2 + ___Al
synthesis
decomposition
single-replacement
double-replacement
combustion
What type of chemical reaction is shown in the skeleton equation below?
___Fe2O3 ---> ___Fe + ___O2
synthesis
decomposition
single-replacement
double-replacement
combustion
What type of chemical reaction is shown in the skeleton equation below?
___C4H8 + ___O2 ---> ___CO2 + ___H2O
synthesis
decomposition
single-replacement
double-replacement
combustion
What type of chemical reaction is shown in the skeleton equation below?
___K2O + ___H2O ---> ___KOH
synthesis
decomposition
single-replacement
double-replacement
combustion
What type of chemical reaction is shown in the skeleton equation below?
___CaCl2 + ___Ga2(SO3)3 ---> ___CaSO3 + ___GaCl3
synthesis
decomposition
single-replacement
double-replacement
combustion
How many total atoms are in one molecule of Fe2(CO3)3?
(a)
Determine the total number of atoms in the following:
5(NH4)3PO4
(a)
Determine the number of oxygen atoms in the following:
7Al2(HPO4)3
(a)
Identify the correct skeleton (unbalanced) chemical equation for the following reaction: iron (III) sulfate dissolved in water reacts with calcium chloride solution to yield a calcium sulfate solid and iron (III) chloride solution.
Fe2(SO4)3 + CaCl2 ---> CaSO4 + FeCl3
Fe2(SO4)3 (l) + CaCl2 (l) ---> CaSO4 (ppt) + FeCl3 (l)
FeSO4 (aq) + CaCl (aq) ---> CaSO4 (s) + FeCl (aq)
Fe2(SO4)3 (aq) + CaCl2 (aq) ---> CaSO4 (s) + FeCl3 (aq)
Identify the correct word equation for the skeleton (unbalanced) chemical equation shown below:
___Cr2O3 (s) ---> ___Cr (s) + ___O2 (g)
Chromium oxide produces chromium and oxygen.
Chromium (III) oxide powder produces chromium metal and oxygen gas.
Chromium oxide powder produces chromium metal and oxygen gas.
Liquid chromium (III) oxide produces chromium metal and oxygen solid.
