مسائكم / صباحكم ورد وجوري ...
اتمنى منكم تصحيح هذه القطعه اذا وجد فيها اخطاء انا مستخدمه قاعدة passive voice and past tense
First of all were need to weigh 1 mmol of an aromatic amine, 1 mmol of a carbonyl.compound. Secondly, were Crushed the crystals of each compound into a fine powder, were can used either a glass rod or the bottom of a test tube for it. Thirdly were mixied the two powders in a beaker, then were timed the reaction and were record ed any changes in (melting, color) and the time they occur. If the mixture melted, record the time at which the mixture become solid again, and if it doesn’t solidified within 30 minutes, were can assume that it won’t solidified and we stoped timed. Finally were Crushed the crystals and were taked a melted point of them
.
وجزاء الله خير كل من يساعدني
وهذه القطعه الاصليه ...
First of all we need to weigh 1 mmol of an aromatic amine, 1 mmol of a carbonyl.compound. Secondly, we Crushing the crystals of each compound into a fine powder, we can use either a glass rod or the bottom of a test tube for it. Thirdly we mixing the two powders in a beaker, then we timing the reaction and we record any changes in (melting, color) and the time they occur. If the mixture melted, record the time at which the mixture become solid again, and if it doesn’t solidified within 30 minutes, we can assume that it won’t solidified and we stop timing. Finally we Crushing the crystals and we take a melting point of them.
المفضلات