Read More
Date: 30-9-2018
216
Date: 30-9-2018
294
Date: 25-9-2018
138
|
Seeing How Catalysts Speed Up Reactions
Catalysts speed up reactions by lowering the activation energy of a reaction. They do this in one of two ways:
✓ Providing a surface and orientation that makes a reactant more likely to hit the right part of another reactant to break/make a bond
✓ Providing an alternative mechanism (series of steps for the reaction to go through) that has a lower activation energy
|
|
"عادة ليلية" قد تكون المفتاح للوقاية من الخرف
|
|
|
|
|
ممتص الصدمات: طريقة عمله وأهميته وأبرز علامات تلفه
|
|
|
|
|
المجمع العلمي للقرآن الكريم يقيم جلسة حوارية لطلبة جامعة الكوفة
|
|
|