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WorksheetsN5 Acids and Bases Basics
Total questions: 25
Worksheet time: 25mins
Solutions that have more OH– ions than H+ ions are
acidic
alkaline
spectator ions
neutral
Solutions that have more H+ ions than OH- ions are
acidic
alkaline
spectator ions
neutral
pH 1
pH 10
pH 14
What other laboratory substance can you use to test if colourless substance is an acid or an alkali?
Catalyst
Salt
Universal Indicator
Water
hydrochloric acid
HCl
HClO
H3ClO3
HClO3
nitric acid
HNO2
HNO3
H2NO4
H2NO3
sulfuric acid
HSO3
H2SO3
H2SO4
H3SO4
A
B
C
D
HNO2
a base
a salt
an acid
an ionic compound
Which is true?
pH of less than 7 is basic; pH of more than 7 is acidic
pH of less than 7 is acidic; pH of more than 7 is basic
HCl is found in household products, including some toilet bowl cleaners. Is HCl an acid or a base?
Acid
Base
Neither (Neutral)
On the pH scale, an acid is a compound that produces a solution with a pH (a) 7.
On the pH scale, a base is a compound that produces a solution with a pH (a) 7.
Which of the following is the weakest acid?
bananas (pH 5)
tomatoes (pH 4)
cheese (pH 6)
orange juice (pH 3)
Which of the following pH values represents the greatest concentration of -OH ions?
3
6
9
1
A liquid has a pH of 8. What does this mean?
it is neutral
It is weakly acidic
it is weakly akline
A liquid has a pH of 1. What does this mean?
It must be sodium hydroxide solution
It is strongly acidic
It is weakly akline
pH of soap is 8, soap is ________
strongly acidic
neutral
weakly alkaline
