WORKSHEET
CHEMISTRY
Date: Nov 11, 2021
Points: ____ / ____
Name: ___________________________________
Points:
1. Question: Write sentences that completely describe the chemical reactions
listed below.
→
a) 2KOH(aq) + H2SO4(aq)
b) FeO(s) + C(s) [heat]
c) Cl2 + 2NaI
→
2H2O(l) + K2SO4(aq)
+ CO(g)
2NaCl + I2
d) P4O10(s) + 6H2O(l)
e) C7H16 + 11O2
→ Fe(s)
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→
→
4H3PO4(aq)
7CO2 + 8H2O
2. Question: Rewrite the following word equations as balanced chemical
reactions.
a) Chlorine gas reacts with a solution of potassium iodide, resulting in the
production of elemental iodine and a solution of potassium chloride.
b) Solid silver oxide can be heated to give silver and oxygen gas.
c) When metallic iron reacts with hydrochloric acid, bubbles of hydrogen
gas and an aqueous solution of iron (III) chloride are formed.
d) Heating tin (IV) hydroxide gives tin (IV) oxide and water.
e) Magnesium chloride decomposes into its constituents when a strong
electrical current is passed through it.
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3. Question: How many types of reactions do you know? List the most
common ones and write a balanced chemical equation as an example for
each.
__ / __
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4. Question: Balance the following chemical reactions. Try to discern the
type of reaction.
→
KOH →
a) Ba(OH)2 + NO3
Ba(NO3)2 + H2O
b) H2C2O4 +
K2C2O4 + H2O
c) Pb(NO3)2 + K2CrO4
d) Al + CuSO4
→
e) Zn(OH)2 + H3PO4
→
PbCrO4 + KNO3
Al2(SO4)3 + Cu
→
Zn3(PO4)2 + H2O
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