
تهيئة - المعادلات والحسابات الكيميائية
Quiz
•
Chemistry
•
10th Grade
•
Easy
الاء الأسمر
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ما الصيغة الكيميائية لهيدروكسيد الكالسيوم؟
CaOH
Ca(OH)2
Ca2OH
Ca(OH)3
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
في التفاعل المبين في المخطط أدناه، حدد كتلة الكبريت المتفاعلة مع الرصاص
5 g
10 g
15 g
25 g
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
في المعادلة الكيميائية الموزونة الآتية؟ n ما هي قيمة المعامل
Ca(s) + n HBr (aq) → CaBr2(aq) + H2(g)
4
3
2
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
حدد الأيونات المتفرجة في التفاعل
Pb2+ (aq)+ 2NO3-(aq) + 2K+(aq) +2I-(aq) →2K +(aq) +2NO3-(aq) + PbI2(s)
Pb2+ (aq) , 2NO3-(aq)
2I-(aq) , Pb2+ (aq)
2I-(aq) , 2K+(aq)
2NO3-(aq) , 2K+(aq)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
؟STPما قيمتي الضغط ودرجة الحرارة القياسية
22.4 atm , 100 C
22.4 atm , 0 C
1 atm , 100 C
1 atm , 0 C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3 L
7.5
22.4
67.2
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