Halo all students preparing for your O Level exams,
Do try out the following Chemistry Question from the Top 5 Sec Schools in Singapore during their Preliminary Examinations:
Question:
The number of atoms in 25g of Butane is:
A. 3 X 10^23
B. 3.6 x 10^24
C. 4.2 x 10^23
D. 4.2 x 10^24
Do try and send me your answers, probably by the email or leave a comment below the “COMMENT” section.
All the Best
Sean
Master Trainer =)