paper 1 May/June 2007 Chemistry (0620) IGCSE
Cambridge
IGCSE
Chemistry (0620)
شهریور
2007
مشاهده نمونه سوال
شامل مباحث:
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
45 دقیقه
پیش نمایش صفحه اول فایل
A student investigates the rate of reaction between marble chips and hydrochloric acid.
The mass of the reaction flask is measured.
The graph shows the results of two experiments, P and Q.
Which change explains the difference between P and Q?