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Chemistry

Chemistry · Quick practice · answer shown after each question

Water, solutions and solubility

Question 1 of 10

Question 1 of 10

A suspension allows light to pass through clearly.

Question 2 of 10

Question 2 of 10

0.1 mol of solute is dissolved to make 250 cm³ of solution. What is its concentration?

Question 3 of 10

Question 3 of 10

0.5 mol of solute is dissolved to make 100 cm³ of solution. What is its concentration?

Question 4 of 10

Question 4 of 10

0.25 mol of solute is dissolved to make 200 cm³ of solution. What is its concentration?

Question 5 of 10

Question 5 of 10

The solubility of most solids in water

Question 6 of 10

Question 6 of 10

State three advantages and three disadvantages of hard water.

Question 7 of 10

Question 7 of 10

The number of moles of solute in 1000 cm³ of a 2 mol/dm³ solution is ___ mol.

Question 8 of 10

Question 8 of 10

An efflorescent substance

Question 9 of 10

Question 9 of 10

Describe the stages in the treatment of water for a town supply.

Question 10 of 10

Question 10 of 10

Boiling removes permanent hardness.

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.