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WorksheetsAcids, bases and salts
Total questions: 33
Worksheet time: 33mins
The word equation for an acid reacting with a metal is
acid + metal → salt + carbon dioxide + water
acid + base → salt + water
acid + metal → salt + hydrogen
acid + metal → salt + water
Which of the following values would represent the pH of a strong base?
1
8
7
13
Which of the following is NOT a characteristic of an acid?
sour taste
corrosive
turns litmus paper blue
neutralises bases
Which of the following is true .
Acids and bases form hydroxide ions in solution
Acids form hydroxide ions and bases hydrogen ions in solution
Acids form hydrogen ions in solution, bases do not form ions in solution
Acids form hydrogen ions in solution and bases hydroxide ions
A substance that is 3 on the pH scale would be a(n):
acid
base
neutral
solute
Indigestion occurs when
stomach acid rises into the oesophagus, causing burns, because it is corrosive
the pH in the stomach is too high, so the stomach lining is damaged
there is not enough stomach acid to digest food sufficiently
stomach acid has reacted with carbonates to form carbon dioxide
When the pH of your pool is too low, it can irritate your skin, what do you need to add to raise it
salt (e.g. sodium chloride)
chlorine
hydrochloric acid
sodium carbonate
Which of the following is a neutralisation reaction?
metal + acid → salt + hydrogen
metal + acid → salt + water
carbonate + acid → salt+ carbon dioxide + hydrogen
base + acid → salt + water
When nitric acid is added to magnesium metal a reaction occurs and a gas is produced. The products of this reaction are:
magnesium nitrate and hydrogen gas.
magnesium carbonate and carbon dioxide.
magnesium chloride and hydrogen gas.
magnesium sulphate and carbon dioxide.
An alkali is produced when
A salt dissolves in water
A base dissolves in water
An acid dissolves in water
An acid reacts with a base
Indicators
have a very high pH
change colour to show the pH of a substance
change colour in the presence of salts
have a very low pH
If you added universal indicator to hydrochloric acid, what colour would it turn
blue
green
yellow
red
Which of the following is the word equation for the reaction between acids and carbonates?
metal + acid → salt + hydrogen
carbonate + acid → salt + water
carbonate + acid → salt+ carbon dioxide + water
base + acid → salt + water
Products of a neutralization reaction are always:
an acid and a base
an acid and a salt
a salt and water
a salt and a base
Name the acid present in our stomach.
Sulphuric acid
Hydrochloric acid
Nitric acid
Carbonic acid
Thymolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are:
pink and colourless
blue and red
red and blue
colourless and red
Acid is?
A substance that reacts to metals and carbonates, and has a Ph of below 7.
Often used in drain cleaner.
Something that can only be found in a lab
A bitter tasting substance
An indicator is?
A lab manual or guide
Something like litmus paper that can tell you if a substance is acidic or basic
A PS4 game where you pretend to direct traffic
Something only scientists in a lab can use
sodium carbonate when added to acetic acid evolves a gas .which of the statement is true about the gas evolved
True or false: a neutral solution has equal amounts of H+ and OH-.
True
False
Is pure water acidic, basic, or neutral?
Acidic
Basic
Neutral
How are basic oxides formed?
Which is NOT an amphoteric oxide?
zinc oxide
aluminium oxide
lead (II) oxid
sodium oxide
Which of the followings is an acidic oxide?
SO2
H2O
CO
ZnO
Sulfuric acid reacts with sodium hydroxide to form salt X and water. Name the salt.
sodium sulfate
sodium nitrate
sodium chloride
Potassium carbonate reacts with an acid Y to form potassium nitrate, water and carbon dioxide. What is the acid used for this reaction?
HNO3
H2SO4
HCl
