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level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
Describe the pH of an acid.	<7
Describe the pH of an alkali.	>7
Describe the pH of a neutral solution.	=7
Describe a solution with a pH of 13	Strong Alkali
Describe a solution with a pH of 9	Weak Alkali
Describe a solution with a pH of 2	Strong Acid
What type of oxides form acidic solutions?	Soluble Non-Metal Oxides
Name 3 Acidic Gases	Carbon Dioxide Nitrogen Dioxide Sulphur Dioxide
Which gas is responsible for ocean acidification?	Carbon Dioxide
Which gas is responsible for the greenhouse effect?	Carbon Dioxide
Why is the greenhouse effect a problem?	Causes Global Warming
What is responsible for increased carbon dioxide levels?	Burning of fossil fuels Cement production
Name the main gas responsible for acid rain	Sulphur Dioxide
What is the source of sulphur dioxide emissions?	Burning of fossil fuels containing sulphur (coal)
How are emissions of sulphur dioxide reduced?	Removing sulphur from fossil fuels Chemical scrubbers to remove it from waste gas
Describe the effects of acid rain on the environment	Stunts tree growth Erodes metal & limestone structures Increases erosion rate of steel structures (bridges)
How do you know which metal oxides form alkalis?	Check solubility table
Name 3 types of bases	Metal oxides, hydroxides, carbonates
What salts are produced by nitric acid?	Nitrate salts
What salts are produced by sulphuric acid?	Sulfate salts
What salts are produced by hydrochloric acid?	Chloride salts
Name the salt produced by: Iron Oxide with Sulphuric Acid	Iron Sulphate
Name the salt produced by: Hydrochloric Acid with Sodium Carbonate	Sodium Chloride
Give the definition of a neutralisation reaction?	Reaction with acid as a reactant and water as a product.
Write the word equation for: Nickel Carbonate and sulphuric Acid	Nickel Carbonate + Sulphuric Acid -> Nickel Sulphate + Carbon Dioxide + Water
Write the word equation for: Potassium oxide and Hydrochloric acid	Potassium Oxide + Hydrochloric acid -> Potassium chloride + water
What is this apparatus?	Filtration Apparatus
What is this apparatus?	Evaporation of nickel chloride solution