help with Discussion Week 6

Help me study for my Chemistry class. I’m stuck and don’t understand.

Instructions

Add your initial reply post to this discussion by Friday night at 11:59pm (to do so, just select the “reply” button, below).

In your post please include the following:

1. Write the formula of a binary covalent compound
2. Write the formula of a binary covalent compound
3. Write the formula of a binary covalent compound

For example, I would write in my post:

Hi,

1. CH4
2. NH3
3. BH3

By Sunday night at 11:59pm, please reply to at least one of your peer’s posts. In each reply, please do the following:

1. Write the molecular and electronic geometry of one of the molecules, and determine its polarity.

For example, I would write in my post:

Hi!

#2 is Molecular geometry = Trigonal pyramidal, Electronic Geometry = Tetrahedral, Polarity = Polar