Answer:
no
Explanation:
This absolutly does not prove that time travle is possible becuase.
If you tryed to put a meir 20 thousand light years away it would take you 20 thousand years to get it there, and you would see earth as it is after 20 thousand years of travle,
Answer: Covalent
Explanation:
A covalent compound is formed when an element shares its valence electron with another element. This compound is formed between two non metals. Example:
An ionic compound is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element or the metal and the element which accepts the electrons is known as electronegative element or non metal. Example: 
Answer:
C=1
A=2
F=3
E=4
Hope this helps good luck
Answer:The Hexane layer test is used here for the confirmation of Bromide and Chloride ion. In the test, HNO3 is added to make the solution little acidic.
Explanation: