WORD EQUATIONS
Write a word equation to sum up the following reactions.
1) Magnesium reacts with oxygen to form magnesium oxide.
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2) Hydrochloric acid reacts with magnesium to form magnesium chloride and
hydrogen.
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3) Sodium hydroxide reacts with hydrochloric acid to form sodium chloride and
water.
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4) Nitric acid reacts with iron to form iron nitrate and hydrogen.
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5) Copper carbonate reacts with hydrochloric acid to form copper chloride, water
and carbon dioxide.
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6) Calcium oxide reacts with nitric acid to form calcium nitrate and water.
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CHEMICAL EQUATIONS
1) Complete the following table.
Name
Formula
Hydrochloric acid
HCl
Sodium chloride
NaCl
Sodium hydroxide
NaOH
Potassium hydroxide
KOH
Hydrogen fluoride
Magnesium chloride
HF
MgCl2
Types of atoms
How many of each
type?
2) Write balanced chemical equations for the following reactions.
a) Hydrogen gas reacts with oxygen gas to form water.
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b) Electricity is passed through water which reacts to form hydrogen gas and
oxygen gas.
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c) Hydrochloric acid reacts with sodium hydroxide to form sodium chloride
and water.
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d) Hydrochloric acid reacts with elemental magnesium metal to form
magnesium chloride and hydrogen gas.
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e) Potassium metal reacts with water to form potassium hydroxide and
hydrogen gas.
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MODELLING EQUATIONS
Sketch a model for the following equations which you balanced above.
1) Hydrogen gas reacts with oxygen gas to form water.
2) Potassium metal reacts with water to form potassium hydroxide and hydrogen
gas.