
شهرين
Authored by Abeer Omary
Science
8th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the chemical formula for magnesium chloride?
MgCl
MgCl2
Mg2Cl
MgCl3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What gas is produced when calcium reacts with hydrochloric acid?
Chlorine
Hydrogen
Oxygen
Carbon dioxide
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the bond formed between nitrogen and hydrogen atoms in ammonia?
Ionic bond
Covalent bond
Metallic bond
Hydrogen bond
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the gas produced when hydrochloric acid reacts with calcium carbonate?
Hydrogen
Chlorine
Carbon dioxide
Oxygen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the chemical formula for calcium oxide?
Ca2O
Ca2O3
CaO
CaO2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ما اسم الغاز الناتج من نبوب الاختبار؟
النيتروجين
الكربون
الهيدروجين
الأكسجين
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ما الدليلة على حدوث تفاعل في المنيوم الصلب مع حمض الكبريتيك؟
تطلق غاز
تكون رائحة كريهة
تغير لون الحمض
تشكل رغوة
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