The results recorded here show that the reaction had finished by four minutes, as no more gas was produced after that. The mean rate of reaction = 50 ÷ 4 = 12.5 cm 3 /min However, the rate decreased ...
When an answer to a maths question is marked: full marks are given for the right answer (but it is very important to show your working so you can check your answer, and if you make a small slip, you ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback