| 31. | The anhydrous mineral form of sodium carbonate is quite rare and called natrite.
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| 32. | Anhydrous magnesium sulfate is used as a drying agent.
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| 33. | The anhydrous salt is practically insoluble in water, acetone, and ammonia.
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| 34. | The anhydrous form is easily produced from the hydrated form by gentle warming.
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| 35. | The hydrates are more common than the anhydrous forms.
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| 36. | Barium carbonate is often added to maintain anhydrous and acid-free conditions.
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| 37. | The anhydrous salt is a dark green crystalline solid.
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| 38. | Aluminium sulfate is rarely, if ever, encountered as the anhydrous salt.
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| 39. | The anhydrous salts may be synthesized by heating metal oxides or hydroxides with.
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| 40. | Anhydrous is a monoclinic crystal with slightly sulfuric odor.
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