1. If pressure on the surface of water increases, its boiling point will _______ and freezing point will ________. (Increase/Decrease)
2. A saturated solution can be converted to an unsaturated solution by ________ the amount of solvent. (Increasing/Decreasing)
3. Dissolved air in water contains a _______ percentage of oxygen than ordinary air. (Higher/Lower)
4. At low temperatures the solubility of a gas in water is ________ compared to that at ordinary temperatures. (Less/More)
5. Efflorescence occurs when the vapour pressure of the hydrated crystals is ________ than the vapour pressure of the atmospheric humidity. (More/Less)
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1. If pressure on the surface of water increases,it's boiling point will _decrease_ and freezing point will _increase_.
2. A saturated solution can be converted to an unsaturated solution by_increasing_the amount of solvent.
3. Dissolved air in water contains a_higher_percentage of oxygen than ordinary air.
4. At low temperatures the solubility of a gas in water is_less_compared to that at ordinary temperatures.
5.Efflorescence occurs when the vapour pressure of the hydrated crystals is_less_than the vapour pressure of the atmospheric humidity.
1. If pressure on the surface of water increases,it's boiling point will _decrease_ and freezing point will _increase_.
2. A saturated solution can be converted to an unsaturated solution by_increasing_the amount of solvent.
3. Dissolved air in water contains a_higher_percentage of oxygen than ordinary air.
4. At low temperatures the solubility of a gas in water is_less_compared to that at ordinary temperatures.
5.Efflorescence occurs when the vapour pressure of the hydrated crystals is_less_than the vapour pressure of the atmospheric humidity.
Answered by
19
Answer:1) increase, decrease
2) increasing
3)higher
4)less
5)more
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