Answer and Explanation:
The Fremy salt is a chemical compound its chemical name is disodium nitrosodisuphonate
The molecular formula of the Fremy salt is 
When phenol is treated with Fremy salt in presence of water then benzoquinone is formed
( in presence of Fremy salt and water)
Answer: 0.05
Explanation:Divide the length (1.5 cm) by the number of turns (30)
Answer: that all thre water cycle and C is vaporation
Explanation: