
الصيغة الجزيئية
Authored by Abd Sharaire
Chemistry
11th Grade
Used 4+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
الاسم الكيميائي للصيغةMgSO4·7H2O
سباعي هيدرات كبريتات الماغنسيوم
عشاري هيدرات كبريتات الماغنسيوم
خماسي هيدرات كبريتات الماغنسيوم
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
H2COأي من الآتي يبين النسبة المئوية لتركيب 3
C=12 H=1 O=16
3.2% H , 19.4% C , 17.4%O
14.3% H , 57.1% C , 28.6%O
16.7% H , 50% C , 33.3%O
3.2% H , 19.4% C , 77.4%O
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
% يجب أن تكون النسبة المئوية للكتلة لعنصر في مركب دائما .......... 100
اكبر
اقل
يساوي
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
فما صيغته الجزيئية ؟ amu30 إذا كانت كتلة الصيغة ، CH3 الصيغة الأولية لمركب
C3H9
C2H6
CH4
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
H 4 g Oمنg 64 الصيغة الأولية لمركب يحتوي على
O=16 H=1
HO
HO2
H2O2
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