WorksheetsScience - Reactivity Grade 9, Chemistry
Total questions: 54
Worksheet time: 49mins
Metal + acid =
(a)
= salt + hydrogen
(a)
Metal oxide + acid =
(a)
= salt + water
(a)
acid + alkali =
(a)
= salt + water
(a)
acid + carbonate =
(a)
= salt + water + carbon dioxide
(a)
What's the missing metal from the reactivity series?
potassium
sodium
calcium
magnesium
zinc
iron
silver
gold
(a)
What's the missing metal from the reactivity series?
potassium
sodium
calcium
zinc
iron
copper
silver
gold
(a)
What's the missing metal from the reactivity series?
potassium
calcium
magnesium
zinc
iron
copper
silver
gold
(a)
What's the missing metal from the reactivity series?
potassium
sodium
calcium
magnesium
iron
copper
silver
gold
(a)
Displacement reactions
A more reactive metal will displace a less reactive metal in a (a) .
Displacement reactions
A more reactive metal will displace a (a) reactive metal in a salt.
Displacement reactions
A (a) reactive metal will displace a less reactive metal in a salt.
Zn + CuSO4 =
(a)
= Cu + ZnSO4
(a)
Choose the displacement reaction
Fe + CuSO4 --> Cu + FeSO4
Zn + 2HCl --> ZnCl2 + H2
CuO + H2SO4 --> CuSO4 + H2O
H2SO4 + CaCO3 --> CaSO4 + H2O + CO2
Choose the acid + metal reaction
Fe + CuSO4 --> Cu + FeSO4
Zn + 2HCl --> ZnCl2 + H2
CuO + H2SO4 --> CuSO4 + H2O
H2SO4 + CaCO3 --> CaSO4 + H2O + CO2
Choose the acid + metal oxide reaction
Fe + CuSO4 --> Cu + FeSO4
Zn + 2HCl --> ZnCl2 + H2
CuO + H2SO4 --> CuSO4 + H2O
H2SO4 + CaCO3 --> CaSO4 + H2O + CO2
Choose the acid + (metal) carbonate reaction
Fe + CuSO4 --> Cu + FeSO4
Zn + 2HCl --> ZnCl2 + H2
CuO + H2SO4 --> CuSO4 + H2O
H2SO4 + CaCO3 --> CaSO4 + H2O + CO2
= Cu + ZnSO4
(a)
What acid is this?
HNO3
(a)
What acid is this?
H2SO4
(a)
What acid is this?
HCl
(a)
What salt is this?
NaCl
(a)
What salt is this?
CuSO4
(a)
What salt is this?
KNO3
(a)
What do we call this reaction?
HCl + NaOH --> NaCl + H2O
(a)
Complete the word equation
iron + copper chloride -->
(a)
Complete the word equation
magnesium + zinc sulfate -->
(a)
Complete the symbol equation
Mg + ZnSO4 -->
(a)
Complete the symbol equation
Zn + FeSO4 -->
(a)
The metal was heated in air; it reacted slowly to form an oxide.
The metal was placed in water; there was no reaction.
The metal was placed in dilute acid; there was a reaction with bubbles of gas being given off slowly.
Which metal is it?
magnesium
zinc
copper
silver
The metal was heated in air; it reacted slowly to form an oxide.
The metal was placed in water; there was no reaction.
The metal was placed in dilute acid; there was no reaction.
Which metal is it?
magnesium
zinc
copper
silver
The metal was heated in air; it burned brightly to form an oxide.
The metal was placed in water; there was a slow reaction to from a hydroxide.
The metal was placed in dilute acid; there was a vigorous reaction.
Which metal is it?
magnesium
zinc
copper
silver
The metal was heated in air; there was no reaction.
The metal was placed in water; there was no reaction.
The metal was placed in dilute acid; there was no reaction.
Which metal is it?
magnesium
zinc
copper
silver
Name the salt formed when magnesium reacts with nitric acid
(a)
Name the salt formed when iron reacts with sulfuric acid
(a)
Name the salt formed when zinc reacts with hydrochloric acid
(a)
Name the salt formed when calcium reacts with hydrochloric acid
(a)
When some students made the salt magnesium chloride, they reacted a piece of magnesium with hydrochloric acid in a beaker. When the reaction finished, they poured the solution into an evaporating basin and heated it. After heating it for a short time, they removed it from the heat and left the solution to
evaporate completely.
What risks are there in carrying out this experiment?
hot liquid "spitting"
acid is dangerous
magnesium is toxic
hydrogen gas is toxic
When some students made the salt magnesium chloride, they reacted a piece of magnesium with hydrochloric acid in a beaker. When the reaction finished, they poured the solution into an evaporating basin and heated it. After heating it for a short time, they removed it from the heat and left the solution to
evaporate completely.
How should the students overcome the risks?
wear safety glasses, lab coat and gloves
don't stand too close
be careful when pouring
Which metal is the most reactive?
sodium
potassium
silver
zinc
Which metal is the least reactive?
sodium
potassium
silver
zinc
Which metal is the most reactive?
magnesium
calcium
iron
gold
Which metal is the least reactive?
magnesium
calcium
iron
gold
Which metal is the most reactive?
calcium
sodium
copper
zinc
Which metal is the least reactive?
calcium
sodium
copper
zinc
Other than food, what else is salt used for?
Copper is (a) reactive than iron
Magnesium is (a) reactive than calcium
Magnesium is (a) reactive than zinc
Silver is (a) reactive than gold
