Answer available
Class 9 · Chemistry · Water
Define solute, solvent and solution, and state what a saturated solution is.
2 marksEasyShort answer
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9 questions
- Answer available
Class 9 · Chemistry · Water
The solubility of potassium nitrate at 30 °C is 45 g per 100 g of water. What mass of the salt will saturate 250 g of water at that temperature?
3 marksMediumNumerical
- Answer available
Class 9 · Chemistry · Water
Define solubility and state two factors that affect the solubility of a solid in water.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Water
Define efflorescence, deliquescence and hygroscopy, giving one example of each.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Water
Distinguish between a saturated, an unsaturated and a supersaturated solution.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Water
Distinguish between a hydrated and an anhydrous salt, and state what happens when blue copper sulphate crystals are heated.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Water
Why is water called a universal solvent?
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Water
What is a drying agent? Name two and state one substance each cannot dry.
3 marksMediumShort answer
- Answer available
Class 9 · Chemistry · Water
Define the terms solute, solvent and solution.
3 marksMediumStructured