What is the surface tension of H20

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.

In a ball-and-stick molecular model, what do the sticks represent?