
مسابقة نجمات الكيمياء
Authored by Shaden Hudo
Chemistry
11th Grade
Used 6+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
-2.372V
+2.372V
-25 V
+25 V
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
CO/CO2+ (-0.28V) اذا كان جهد الاختزال القياسي لإلكترود الكوبلت
فأي إلكترود له القدرة على أكسدة إلكترود الكوبلت ؟
Cd / Cd2+ (-0.40 v)
Sn / Sn2+ (-0.14 v)
Al / Al3+ (-1.66 v)
Zn/ Zn2+ (-0.76 v)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt

ارسم الصيغة البنائية المكثفة للمركب الاتي
3-ethyl-2,3-dimethylheptane
CH3-CH(CH3)-C(CH3)(C2H5)-CH2-CH2-CH3
CH3-CH(CH3)-C(CH3)(C2H5)-CH2-CH2-CH2-CH3
CH3-CH(CH3)-CH(CH3)-CH(C2H5)-CH2-CH2-CH3
CH3-CH(CH3)-CH(CH3)-CH(CH3)-CH2-CH2-CH3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ما الاسم العلمي الصحيح للمركب الاتي بحسب نظام الايوباك
4-ethyl-2-hexene
3-ethyl-4-hexene
4-methyl-2-hexene
4-ethyl-2-penten
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
تنص رؤية وزارة التربية والتعليم والتعليم العالي ( الريادة في توفير فرص ----- دائمة و------ ذات جودة عالية للمجتمع القطري
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