Sentence 1: Ethenone tends to polymerize spontaneously , contact with hydrogen peroxide leads to an explosive reaction and can form with air an explosive mixture .
Sentence 2: Ethenone tends to spontaneously form . Contact with hydrogen peroxide leads to an explosive reaction . It can polymerize an explosive mixture with air .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?