
قانون حفظ الكتلة
Authored by ramadan desouky
Science
8th Grade
Used 17+ times

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5 questions
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1.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
بعد حدوث التفاعلات الكيميائية كتلة النواتج تكون
أكبر من كتلة المتفاعلات
أقل من كتلة المتفاعلات
تساوي كتلة المتفاعلات
مختفية ولا تظهر
2.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
2H2 + O2
الناتجH2O2
2H2O
H4O2
4HO2
3.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Na +AgCl → NaCl +Ag نوع التفاعل
تكوين
تفكيك
استبدال أحادي
استبدال ثنائي
4.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
تفاعل كيميائي تتحد فيه مادة ما مع الاكسجين مع انطلاق حرارة
التفكيك
الاحتراق
الاستبدال المزدوج
الاستبدال الاحادي
5.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
من خواص الحفاز
يزيد من طاقة التنشيط
يدخل بسهولة في التفاعل
لا يستهلك
يختفي أثناء التفاعل
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