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Date: 6-11-2018
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Date: 20-12-2018
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Date: 30-3-2019
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Aluminum oxide is often referred to as alumina or when crystallized, corundum. Aluminum oxide is relatively unreactive because the small Al3+ ions and the O2+ form a very stable ionic lattice in cubic closet structure with the ions occupying small octahedral holes. Aluminum is protected against corrosion due to thin coating of Al2O3which prevent further oxidation of the aluminum metal.
Aluminum hydroxide is amphoteric which means that it can react with acids or bases.
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دراسة يابانية لتقليل مخاطر أمراض المواليد منخفضي الوزن
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اكتشاف أكبر مرجان في العالم قبالة سواحل جزر سليمان
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اتحاد كليات الطب الملكية البريطانية يشيد بالمستوى العلمي لطلبة جامعة العميد وبيئتها التعليمية
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