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WorksheetsChemical Reactions of Acids and Bases
Total questions: 21
Worksheet time: 14mins
Burning in the presence of oxygen is called...
Displacement
Synthesis
Decomposition
Combustion
Complete the general reaction
Metal+acid ---------> Salt + -----------
Nitrogen
Hydrogen
water
Sodium Chloride
Mg + H2SO4 ------------> _________ + H2
MgH2
MgS + 2O2
MgSO4
Mg(SO4)2
Na + HNO3 ------------>
Na + H2O + O2
NaH + NO2
Na(NO3)2 + H2
NaNO3 + H2
How to test the Hydrogen gas formed in a test???
It burn the lighted splint with pop sound
It turns lime water milky
It turns damp litmus blue
It relights the glowing splint
Complete the general reaction.
Metal Carbonate + Acid --------->
Salt + water
Water + Carbondioxide
Salt + water + Carbon monoxide
Salt + water + Carbon dioxide
CaCO3 + HCl ----------->
H2O + CO2
CaCl2 + H2O + CO2
CaCl3 + H2O+ CO2
CaCl3 + H2O + CO
NaHCO3 + H2SO4 ------------> H2O +
CO2
NaSO4 + CO2
Na2SO4 + CO2
Na2(SO4)2 + CO2
Which of the following describes a precipitate?
a liquid forms when a block of metal is heated
a solid forms when one liquid is poured into another
a gas forms when a solid is placed in a liquid
bubbles form when an acid is poured on a rock
How to test the Carbondioxide gas formed in a test???
It burn the lighted splint with pop sound
It turns lime water milky
It turns damp litmus blue
It relights the glowing splint
Complete the general reaction
Metal oxide + acid ---------->Salt +
Hydrogen
Water
Hydrogen + Water
Hydrogen + Oxygen
ZnO + H2SO4 --------->
ZnSO4 + H2 + O2
Zn(SO4)2 + H2O
Zn(SO4)2 + H2
ZnSO4 + H2O
Ca(OH)2 + 2HNO3 ------->
Ca(NO)3 + H2O
CaNO3 + H2O
Ca(NO3)2 + 2H2O
Ca(NO3)2 + H2O
A base react with an acid to form only
Salt
Water
they don't react
Salt and water
What is the difference between base and alkali
Alkalis are water insoluble bases
Alkalis are water soluble bases
Both are same
Alkali react with acids while bases don't.
Sodium hydroxide react with dilute sulphuric acid to form sodium sulphate and water. The ionic equation for this reaction is
2NaOH + H2SO4 ---------> Na2SO4 + 2H2O
Na+1 + SO4-2 --------> Na2SO4
Na+1 + OH-1 + H+ + SO4-2 -------->Na+1 + SO4-2 + 2H2O
H+ + OH-1 ----------> H2O
Choose a neutralization reaction.
Metal oxide + acid -------> Salt + Water
Metal carbonate +acid -------> Salt + Water + Carbon dioxide
Metal + acid -------> Salt + Hydrogen
Metal Hydrogen carbonate +acid -------> Salt + Water + Carbon dioxide
Complete the reaction.
Ca(OH)2 + 2NH4Cl ----------> CaCl2 +
NH3
NH3 + H2O
NH3 + 2H2O
2H2O + NO2
