Ba CaCl₂ + H2O + Com
Answers
Answer:
hey dear your all formulas
Reaction Type & Balancing Review Questions
There are 20 questions sets in this review. The
corresponding answers can be found in the second half of
this document.
1. Match the term with its proper description.
1. Product A. A reaction in which a
single compound is broken
into simpler substances
2. Chemical equation B. A small whole number
that appears before a
formula in a chemical
equation
3. Decomposition reaction C. An equation that satisfies
the Law of Conservation of
Mass
4. Coefficient D. A concise representation
of a chemical reaction
5. Balanced equation E. A new substance formed
in a reaction
2. Identify the following reaction types.
1 CaCl2 + HNO3 ‡ Ca(NO3)2 + HCl
2 SO2 + H2O ‡ H2SO3
3 Pb(OH)2 ‡ PbO + H2O
4 NH3 + O2 ‡ N2 + H2O
5 CH4 + O2 ‡ CO2 + H2O
6 SiO2 + HF ‡ H2O + SiF4
7 C6H12O6 + O2 ‡ CO2 + H2O
3. Balance these equations.
1 NH4Cl + NaNO2 ‡ NaCl + N2 + H2O
2 Hg2O + O2 ‡ HgO
3 Mg(HCO3)2 + HCl ‡ MgCl2 + H2O + CO2
4 ZnS + O2 ‡ ZnO + SO2
5 Al2(SO4)3 + NaHCO3 ‡ Al(OH)3 + Na2SO4 + CO2
6 As + O2 ‡ As2O3
7 BaBr2 + Na3PO4 ‡ Ba3(PO4)2 + NaBr
8 Al2O3 + HF ‡ AlF3 + H2O
4. Identify the following reaction types. Assume all
reactions are possible.
1 2KNO3 ‡ 2KNO2 + O2
2 Hg + 2HNO3 ‡ HgNO3 + H2
3 2Na + 2HNO3 ‡ 2NaNO3 + H2
4 (NH3)PO4 + LiOH ‡ Li2PO4 + 3NH4OH
5 2NaCl ‡ 2Na + Cl2
6 BaO + H2O ‡ Ba(OH)2
7 2NaClO3 ‡ 2NaCl + 3O2
8 ZnCl2 + H2S ‡ 2HCl + ZnS
9 SO2 + H2O ‡ H2SO3
10 2Al + 6HCl ‡ 2AlCl3 + 3H2
11 C2H10O6 + O2 ‡ CO2 + H2O
5. Predict the products of the following reactions. Make
sure the reaction is possible and make sure the charges are
balanced in your formulas!
1 Ba + O2 ‡
2 MgO ‡
3 Zn + CuSO4 ‡
4 Ag + FeSO4 ‡
5 BaCl2 + Na3PO4 ‡
6 CuO + H2SO4 ‡
7 C4H10 + O2 ‡
6. Predict the products of the following reactions. Make
sure the reaction is possible and make sure the charges are
balanced in your formulas!
1 Mg + N2 ‡
2 C3H8 + O2 ‡
3 HNO3 + LiOH ‡
4 KC2H3O2 + NH4OH ‡
5 Mg + H2O ‡
6 HgO ‡
7 Ba + Br2 ‡
7. Balance the following equations. The chemical
formulas are correct.
1 NaClO3 ‡ NaCl + O2
2 Mg + H3PO4 ‡ Mg3(PO4)2 + H2
3 (NH4)2CO3 + NaOH ‡ Na2CO3 + NH3 + H2O
4 W + Cl2 ‡ WCl6
5 N2 + H2 ‡ NH3
6 H2O + P2O5 ‡ H3PO4
8. The following equations are wrong. Fix them, then
balance them.
1 Ca(SO4)2 + NaCO3 ‡ NaSO4 + CaCO3
2 Cl + NaBr ‡ NaCl + Br
3 Al + Na(OH)2 + H2O ‡ NaAl(OH)4 + H2
4 C4H8 + 4O2 ‡ 4CO2 + 4H2O
9. Something is wrong in each of the following equations.
Find the problem, then write the properly balanced
equation.
1 2KI + Pb(NO3)2 ‡ PbI + 2KNO3
2 2Al + 3O ‡ Al2O3
3 NH3 + HSO4 ‡ NH4SO4
4 Al + Fe2O3 ‡ AlO3 + Fe2
10. Match the term with its proper description.
1. Activity Series of Metals A. An ingredient in a
reaction
2. Reactant B. Reversible reaction
3. Combustion reaction C. A reaction in which the
products are carbon dioxide
and water
4. Single-replacement
reaction
D. A reaction in which
atoms of 1 element replace
atoms of a second element
5. E. A list in order of
decreasing reactivity
11. Predict whether or not the following reactions will
occur.
1 HCl + Hg ‡ HgCl + H2
2 H2O + Li ‡ LiOH + H2
3 Cu(C2H3O2)2 + Pb(NO3)2 ‡ Pb(C2H3O2)2 + Cu(NO3)2
4 ZnBr2 + K2CO3 ‡ ZnCO3 + KBr
5 Ca + LiOH ‡ Ca(OH)2 + Li
6 NaOH + H2SO4 ‡ H2O + Na2SO