Download Chemical Equations Worksheet (Oct 2007)

Write a balanced chemical equation for each of the word equations below. Include states.
1. Aqueous sodium chloride reacts with aqueous lead (II) nitrate to yield a lead (II) chloride
precipitate and aqueous sodium nitrate
2. Aqueous barium nitrate reacts with sulfuric acid to yield a barium sulfate precipitate and nitric acid.
3. Silver nitrate reacts in solution with potassium chromate to yield a silver chromate precipitate and
soluble potassium nitrate
4. Solid calcium carbonate reacts with hydrochloric acid to yield aqueous calcium chloride, carbon
dioxide gas, and liquid water
5. Aqueous zinc chloride reacts with dihydrogen monosulfide gas to yield a zinc sulfide precipitate
and hydrochloric acid
6. Magnesium nitrate reacts in solution with potassium hydroxide to yield a magnesium hydroxide
precipitate and soluble potassium nitrate
7. Solid aluminum hydroxide reacts with nitric acid to yield soluble aluminum nitrate and liquid water
8. aqueous lead (IV) nitrate reacts with aqueous sodium sulfate to yield a lead (IV) sulfate precipitate
and soluble sodium nitrate
9. Aqueous sodium hydroxide reacts with carbon dioxide gas to yield soluble sodium carbonate and
liquid water
10. Solid magnesium oxide reacts with hydrochloric acid to yield a solution of magnesium chloride
and liquid water
11. Solid zinc metal reacts with sulfuric acid to yield aqueous zinc sulfate and hydrogen gas
12. Solid ferric oxide reacts with solid aluminum metal to yield solid aluminum oxide and solid iron
metal
First, balance each of the chemical equations below. Then, classify each reaction as synthesis,
decomposition, single-displacement, or double-displacement..
1.
____ Sb + ____ Cl2 Æ ____SbCl3
________________________
2.
____ Mg + ____O2 Æ ____MgO
________________________
3.
____ CaCl2 Æ ____ Ca + ____ Cl2
________________________
4.
____ NaClO3 Æ ____ NaCl + ____ O2
________________________
5.
____ Fe + ____ HCl Æ ____ FeCl2 + ____ H2
________________________
6.
____ CuO + ____ H2 Æ ____ Cu + ____ H2O
________________________
7.
____ Al + ____ H2SO4 Æ ____ Al2(SO4)3 + ____ H2
________________________
8.
____ MgBr2 + ____ Cl2 Æ ____ MgCl2 + ____ Br2
________________________
9.
____ SnO2 + ____ C Æ ____ Sn + ____ CO
________________________
10.
____ Pb(NO3)2 + ____ H2S Æ ____ PbS + ____ HNO3
________________________
11.
____ HgO Æ ____ Hg + ____ O2
________________________
12.
____ KClO3 Æ ____ KCl + ____ O2
________________________
13.
____ N2 + ____ H2 Æ ____ NH3
________________________
14.
____ NaBr + ____ Cl2 Æ ____ NaCl + ____ Br2
________________________
15.
____ Zn + ____ AgNO3 Æ ____ Zn(NO3)2 + ____ Ag
________________________
16.
____ Sn + ____ Cl2 Æ ____ SnCl4
________________________
17.
____ Ba(OH)2 Æ ____ BaO + ____ H2O
________________________
18.
____ Mg(OH)2 + ____ HCl Æ ____ MgCl2 + ____ H2O
________________________
19.
____ Na2CO3 + ____ HCl Æ ____ NaCl + ____ H2CO3
________________________
20.
____ NH4NO2 Æ ____ N2 + ____ H2O
________________________
21.
____ N2 + ____ O2 Æ ____ N2O5
________________________
22.
____ MgCO3 Æ ____ MgO + ____ CO2
________________________
23.
____ KBr + ____ Cl2 Æ ____ KCl + ____ Br2
________________________
24.
____ Zn + ____ CuSO4 Æ ____ Cu + ____ ZnSO4
________________________
25.
____ P + ____ O2 Æ ____ P4O6
________________________
26.
____ SrBr2 + ____ (NH4)2CO3 Æ ____ SrCO3 + ____ NH4Br
__________________
27.
____ AgNO3 + ____ (NH4)2CrO4 Æ ____ Ag2CrO4 + ____ NH4NO3
__________________
28.
____ K + ____ H2O Æ ____ KOH + ____ H2
________________________
29.
____ Al + ____ Pb(NO3)2 Æ ____ Al(NO3)3 + ____ Pb
________________________
30.
____ Fe + ____ O2 Æ ____ Fe3O4
________________________
31.
____ Li + ____ O2 Æ ____ Li2O
________________________
32.
____ ZnCl2 + ____ KOH Æ ____ Zn(OH)2 + ____ KCl
________________________
33.
____ Fe3O4 + ____ H2 Æ ____ Fe + ____ H2O
________________________
34.
____ Pb(NO3)2 Æ ____ Pb + ____ NO2 + ____ O2
________________________
35.
____ H2O Æ ____ H2 + ____ O2
________________________
36.
____ Mg + ____ N2 Æ ____ Mg3N2
________________________
Complete the word equation for the following chemical equations. Below the word equation, write the
balanced chemical equation. Classify each reaction as synthesis (s), decomposition (d), singledisplacement (s.d.), or double-displacement (d.d.) to the left of the question number.
_____ 1. aluminum sulfate + calcium phosphate Æ
_____ 2. magnesium chloride + silver nitrate Æ
_____ 3. sodium chlorate Æ
_____ 4. hydrogen gas + oxygen gas Æ
_____ 5. zinc metal + copper(II) nitrate Æ
_____ 6. sulfurous acid Æ water + sulfur dioxide
_____ 7. copper(II) oxide + sulfuric acid Æ
_____ 8. nitrogen gas + hydrogen gas Æ ammonia
_____ 9. sodium iodide + chlorine gas Æ
_____ 10. copper(II) hydroxide Æ copper(II) oxide + water
_____ 11. ammonia gas + hydrochloric acid Æ (hint: single product)
_____ 12. potassium metal + water (hint: H+OH-) Æ
_____ 13. propane (C3H8) + oxygen Æ (hint: two products)