The reaction 2 A + B2 -> 2 AB follows this mechanism: Step 1: A + B2 -> AB + B (slow)

Step 2: A + B -> AB (fast)

What is the order with respect to [B2] in the overall reaction?
A. zero
B. first
C. second
D. third
E. it cannot be determined

How would you like us to answer that question?

No pos ta cabron compa

Psychologists often talk of the magical number "7" - so it is generally assumed that we can keep 7 (more or less, so 5-9 is the correct answer) items in our short term memory - we know this as a result of many experiments.

we can increase this by chunking, so for example "7 8 9 5 3" is harder to remember than "78 95 3" - try it yourself!

the answer is a)