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Date: 5-1-2016
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Date: 30-1-2017
1649
Date: 13-4-2019
953
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Intermolecular hydrogen bonds
Intermolecular hydrogen bonds occur between separate molecules in a substance. They can occur between any number of like or unlike molecules as long as hydrogen donors and acceptors are present an in positions in which they can interact. For example, intermolecular hydrogen bonds can occur between NH3 molecules alone, between H2O molecules alone, or between NH3 and H2O molecules.
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هل يمكن للدماغ البشري التنبؤ بالمستقبل أثناء النوم؟
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علماء: طول الأيام على الأرض يزداد بسبب النواة الداخلية
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المجمع العلمي يشرك طلبة الدورات الصيفية بمحفلٍ قرآني في محافظة بابل
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