Answer:
In chemistry, a reaction mechanism is the step by step sequence of elementary reactions by which overall chemical change occurs. A chemical mechanism is a theoretical conjecture that tries to describe in detail what takes place at each stage of an overall chemical reaction.
Explanation:
6 because after the 'H' is the number '6'
Answer:
18857
Explanation:
1j=0.239cal
78.9kj=78900j
78.9kj= 78900×0.239=18857cal
