Paper 1 October/November 2014 CHEMISTRY (9701/11) IGCSE
CIE
AS & A Level
Chemistry (9701)
بهمن
2014
شامل مباحث:
تعداد سوالات: 30
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه

پیش نمایش صفحه اول فایل
Elements Y and Z are both in Period 3 of the Periodic Table.
When the chloride of element Y is added to water, it reacts and a solution of pH 2 is produced.
When the chloride of element Z is added to water, it dissolves and a solution of pH 7 is produced.
Which statement explains these observations?