Do you know which compounds will form a precipitate?
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This quiz is mainly aimed at Edexcel students. Most other courses can skip this and move on to another chemistry quiz.
Warning: This quiz is quite difficult and to pass you’ll need to remember the rules that determined if a salt is soluble or not. Be patient, it might take a few tries. Try to remember the rules and not just guess the answers.
Remember, soluble means that the salt will dissolve in water to form a solution. Insoluble means it won’t.
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Use the following words to fill in the blanks. You can use each word more than once.
Soluble, insoluble
Complete the statements about the solubility of substances in water:
All common sodium, potassium and ammonium salts are .
All nitrates are
Most hydroxides are
Most chlorides are
Lead, barium and calcium sulfates are
Sodium, potassium and ammonium carbonates and hydroxides are
Silver and lead chlorides are
Most hydroxides are
Most sulfates are
Most carbonates are
Correct
Incorrect
Question 2 of 12
Question 2
Drag and drop to match the substance with its solubility in water
Insoluble
Soluble
Copper hydroxide
Sodium nitrate
Correct
Incorrect
Question 3 of 12
Question 3
Drag and drop to match the substance with its solubility in water
Soluble
Insoluble
Sodium sulfate
Magnesium hydroxide
Correct
Incorrect
Question 4 of 12
Question 4
Drag and drop to match the substance with its solubility in water
Soluble
Insoluble
Potassium hydroxide
Lead sulfate
Correct
Incorrect
Question 5 of 12
Question 5
Drag and drop to match the substance with its solubility in water
Soluble
Insoluble
Calcium chloride
Silver chloride
Correct
Incorrect
Question 6 of 12
Question 6
Use the following words to fill in the blanks. You can use each word more than once.
Soluble, insoluble
Complete the statements about the solubility of substances in water:
Barium nitrate is in water
Barium carbonate is in water
Barium sulfate is in water
Correct
Incorrect
Question 7 of 12
Question 7
Use the following words to fill in the blanks. You can use each word more than once.
Soluble, insoluble
Complete the statements about the solubility of substances in water:
Aluminium nitrate is
Silver nitrate is
Calcium nitrate is
Correct
Incorrect
Question 8 of 12
Question 8
If we mix magnesium sulfate solution and barium chloride solution, will a precipitate form? Choose the answer which correctly predicts the outcome AND provides the correct reasoning.
Correct
Incorrect
Question 9 of 12
Question 9
Complete the balanced chemical equation for the reaction between copper sulfate and potassium carbonate, and predict if a precipitate will form.
Use the words “will” or “will not” to fill in the blank and show if a precipitate will form.
₄ (aq) + K₂₃(aq) → CuCO₃() + K₂SO₄()
A precipitate form.
Correct
Incorrect
Question 10 of 12
Question 10
Which statements about salts are correct?
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Incorrect
Question 11 of 12
Question 11
If we mix sodium hydroxide solution and magnesium chloride solution, will a precipitate form? Choose the answer which correctly predicts the outcome AND provides the correct reasoning.
Correct
Incorrect
Question 12 of 12
Question 12
Use some of the following words to fill in the blanks.
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