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الدرس 2
Water and solutions
📖 الدرس
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🎯 اختبار — اختر الترجمة
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✅ أُنجز الدرس
Water is H₂O: two hydrogen atoms and one oxygen. It dissolves salt, sugar and much more. When a substance dissolves, we get a solution.
🧂 Not everything dissolves: oil does not disappear in water — it floats as droplets.