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balancing equations for practice, Assignments of Chemistry

Chemistry

balancing equations for practice

Typology: Assignments

2022/2023

Uploaded on 01/08/2023

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Chemistry 11 Unit 6 Chemical Reactions
WS6-2 Word Equations.doc
1
Worksheet 6.2 Word Equations
1. Write the chemical equations and balance each of the following word equations.
a) Aluminum metal reacts with iron (II) oxide powder to produce aluminum oxide solid and
iron metal.
__________________________________________________________________________
b) Aluminum sulphate solution and calcium hydroxide solution produce a precipitate of
aluminum hydroxide and solid calcium sulphate.
__________________________________________________________________________
c) Ammonia gas (NH3) plus oxygen gas yields nitrogen monoxide gas plus water vapour.
__________________________________________________________________________
d) Calcium hydroxide solution and carbon dioxide gas yields solid calcium carbonate and
liquid water.
__________________________________________________________________________
e) Aqueous iron (III) chloride and sodium carbonate solution yields aqueous sodium chloride
and a precipitate of iron (III) carbonate.
__________________________________________________________________________
f) Solid iron (III) oxide and carbon monoxide gas yields iron metal and carbon dioxide gas.
__________________________________________________________________________
g) Magnesium carbonate solution plus aqueous hydrochloric acid (HCl) yields magnesium
chloride solution plus liquid water and carbon dioxide gas.
__________________________________________________________________________
h) Silicon dioxide solid plus aqueous hydrofluoric acid (HF) yields solid silicon tetrafluoride plus
liquid water.
__________________________________________________________________________
i) Aqueous sodium hydroxide and carbon dioxide gas yields sodium carbonate solution and
liquid water.
__________________________________________________________________________
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Chemistry 11 Unit 6 Chemical Reactions

WS6-2 Word Equations.doc 1

Worksheet 6. 2 Word Equations

  1. Write the chemical equations and balance each of the following word equations.

a) Aluminum metal reacts with iron (II) oxide powder to produce aluminum oxide solid and iron metal.

b) Aluminum sulphate solution and calcium hydroxide solution produce a precipitate of aluminum hydroxide and solid calcium sulphate.

c) Ammonia gas (NH 3 ) plus oxygen gas yields nitrogen monoxide gas plus water vapour.

d) Calcium hydroxide solution and carbon dioxide gas yields solid calcium carbonate and liquid water.

e) Aqueous iron (III) chloride and sodium carbonate solution yields aqueous sodium chloride and a precipitate of iron (III) carbonate.

f) Solid iron (III) oxide and carbon monoxide gas yields iron metal and carbon dioxide gas.

g) Magnesium carbonate solution plus aqueous hydrochloric acid (HCl) yields magnesium chloride solution plus liquid water and carbon dioxide gas.

h) Silicon dioxide solid plus aqueous hydrofluoric acid (HF) yields solid silicon tetrafluoride plus liquid water.

i) Aqueous sodium hydroxide and carbon dioxide gas yields sodium carbonate solution and liquid water.

Chemistry 11 Unit 6 Chemical Reactions

WS6-2 Word Equations.doc 2

  1. Balance the following chemical equations.

a) ___ Al + ___ NaOH ___ Na 3 AlO 3 + ___ H 2

b) ___ C 12 H 22 O 11 + ___ O 2 ___ CO 2 + ___ H 2 O

c) ___ Ca 3 (PO 4 ) 2 + ___ H 2 SO 4 ___ CaSO 4 + ___ H 3 PO 4

d) ___ FeOCr 2 O 3 + ___ K 2 CO 3 + ___ O 2 ___ K 2 CrO 4 + ___ CO 2 + ___ Fe 2 O 3

e) ___ Cu + ___ HNO 3 ___ Cu(NO 3 ) 2 + ___ NO + ___ H 2 O

f) ___ SiF4(s) + ___ NaOH(aq) ___ Na 4 SiO4(s) + ___ NaF(aq) + ___ H 2 O(l)

g) ___ Na 2 B 4 O 7 + ___ HCl + ___ H 2 O ___ NaCl + ___ H 3 BO 3

h) ___ MnO 2 + ___ K 2 CO 3 + ___ O 2 ___ KMnO 4 + ___ CO 2

i) ___ KMnO 4 + ___ HCl ___ KCl + ___ MnCl 2 + ___ H 2 O + ___ Cl 2

j) ___ Ni 2 O 3 + ___ Fe + ___ H 2 O ___ Ni(OH) 2 + ___ Fe(OH) 2

k) ___ Si + ___ NaOH ___ Na 4 SiO 4 + ___ H 2

l) ___ Cu + ___ HNO 3 ___ Cu(NO 3 ) 2 + ___ NO + ___ H 2 O

m) ___ FeCl 2 + ___ KNO 3 + ___ HCl ___ FeCl 3 + ___ NO + ___ H 2 O + ___ KCl

n) ___ KMnO 4 + ___ HBr ___ MnBr 2 + ___ Br 2 + ___ KBr + ___ H 2 O

o) ___ K 2 Cr 2 O 7 + ___ HCl ___ KCl + ___ CrCl 3 + ___ H 2 O + ___ Cl 2