تحمض الحليب

الصيغ والمعادلات الكيميائية

Quiz
•
Chemistry
•
5th Grade
•
Hard
صديقة الصباح
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
تغير فيزيائي
تغير كيميائي
لا يحدث تغير
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fe2o3+co2→Fe3o4+CO2
2Fe2o3+co2→Fe3o4+CO2
Fe2o3+co2→4Fe3o4+CO2
3Fe2o3+co2→2Fe3o4+CO2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2O+طاقة →H2 + O2
ماص للطاقة
طارد للطاقة
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
أكتشفي المعادلة غير الموزونة
2AL+3Br2 → 2ALBr3
2H2+O2 →2H2O
Zn+Hcl→H2+Zncl2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cu+S→Cu2S
الوزن الصحيح للمعادلة
2 Cu+S→2Cu2S
2 Cu+S→Cu2S
Cu+2S→Cu2S
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