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Date: 19-1-2018
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Date: 20-12-2018
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Date: 24-10-2018
1011
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Unlike metals forming ionic bonds with nonmetals, hydrogen forms polar covalent bonds. Despite being electropositive like the active metals that form ionic bonds with nonmetals, hydrogen is much less electropositive than the active metals, and forms covalent bonds.
Hydrogen + Halogen → Hydrogen Halide
Hydrogen gas reacting with oxygen to produce water and a large amount of heat:
Hydrogen + Oxygen → Water
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مخاطر عدم علاج ارتفاع ضغط الدم
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اختراق جديد في علاج سرطان البروستات العدواني
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مدرسة دار العلم.. صرح علميّ متميز في كربلاء لنشر علوم أهل البيت (عليهم السلام)
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