Paper 1 February/March 2022 CHEMISTRY (9701/12) IGCSE
Cambridge
AS & A Level
Chemistry (9701)
خرداد
2022
شامل مباحث:
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
75 دقیقه

پیش نمایش صفحه اول فایل
In the structure of solid SiO$_2$
each silicon atom is bonded to x oxygen atoms
each oxygen atom is bonded to y silicon atoms
each bond is a z type bond.
What is the correct combination of x, y and z in these statements?