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WorksheetsACIDS, BASES AND SALTS
Total questions: 20
Worksheet time: 24mins
Select the properties of acids:
turns blue litmus red
corrosive
soluble in water
proton acceptor
Bases are _________ or _________ of metals
(a)
TRUE OR FALSE: Alkalis are a sub group in the large family of bases.
false
true
Calcium hydroxide is a well known (a) with low (b) in water unlike other (c)
methyl orange
in acids - red and alkalis - yellow
litmus
in acids - red and alkalis - blue
thymolphthalein
in acids - colourless and alkalis - blue
solutions of acids x and y have the same concentrations. X has pH 2.5. Y has pH 5.3. Which one is a weak acid, explain your reasoning:
Metal + acid -----------> _________ + ________
(a)
Acid + base -------> _______ + _________
(a)
Name the products of the following reaction:
Calcium carbonate + Hydrochloric acid
calcium chloride + water
calcium carbonate + carbon dioxide
calcium chloride + hydrogen
calcium chloride + carbon dioxide + water
A compound X on reaction with a test tube of copper (II) oxide produced a blue coloured solution, releasing a colourless gas which puts out a burning splint with a pop sound. Identify the compound:
salt
base
acid
alkali
Name the reaction which takes place between an acid and a base
displacement
neutralization
double displacement
redox reaction
Identify the practical application of neutralization reactions in daily life:
Paint industry
tooth paste
indigestion tablets
adding limestone/lime to soil
Write the ionic equation for a neutralization reaction:
Complete the following reaction:
CuO + HCl -----------> ________ + __________
Basic oxides
formed by metals reacting with oxygen
acidic oxide
formed by non metals reacting with oxygen
neutral oxide
Carbon monoxide
Amphoteric oxide
Aluminium oxide
TRUE OR FALSE: Acidic oxides dissolve in water while basic oxides are insoluble
true
false
Match the following : Making salts
ZnSO4
reaction of acid with metal
CuSO4
reaction of insoluble base or carbonate with acid
BaSO4
precipitation reaction between soluble salt
NaCl
Titration between an acid and base using an indicator
Complete the following equation and balance it:
Ca(OH)2 + 2NH4 Cl -----> _________ + __________ + _________
What is the number of water of crystallization in Copper sulphate crystals?
3
2
5
4
Find the concentration of a solution of hydrochloric acid, by titration against a 1 mol/dm3 solution of sodium carbonate. Use the data below for calculation:
volume of acid used:
initial burette reading : 1.0 cm3
Final burette reading: 28.8 cm3
Volume of acid used: 27.8 cm3
