| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.sl.TZ2.2 |
| Level | SL | Paper | 1 | Time zone | TZ2 |
| Command term | Determine | Question number | 2 | Adapted from | N/A |
Question
What is the sum of the coefficients for the equation when balanced using the smallest possible whole numbers?
__ \({{\text{N}}_2}{{\text{H}}_4}({\text{g)}} + \) __ \({{\text{O}}_2}{\text{(g)}} \to \) __ \({\text{N}}{{\text{O}}_2}{\text{(g)}} + \) __ \({{\text{H}}_2}{\text{O(g)}}\)
A. 5
B. 6
C. 7
D. 8
Markscheme
D
Examiners report
[N/A]
Syllabus sections
Core » Topic 1: Stoichiometric relationships » 1.1 Introduction to the particulate nature of matter and chemical change
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