0620/12 Chemistry Oct Nov 2018 Online Test | Cambridge IGCSE MCQ
CIE
IGCSE
Chemistry (0620)
بهمن
2018
مشاهده نمونه سوال
شامل مباحث:
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
45 دقیقه

پیش نمایش صفحه اول فایل
Farmers add calcium oxide (lime) and ammonium salts to their fields.
The compounds are not added at the same time because they react with each other.
Which gas is produced in this reaction?