Chemical Polarity

In covalent bonds, electrons are ___________.

• transferred
• gained
• lost
• shared

Tags

NGSS.HS-PS1-2

In a polar covalent bond, electrons are shared ___________.

• equally
• unequally
• between non-metals with similar electronegativities
• between a metal and a non-metal

Electronegativity is a measurement of the ability of a nucleus to...

• attract bonding electrons
• attract other nuclei
• attract elenece in the non-valence energy levels

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which molecule contains bonds of GREATER polarity?

• H2O
• OF2

Tags

NGSS.HS-PS1-1

Which molecule contains bonds with a GREATER polarity?

• HCl
• CCl4

Which molecule contains bonds with a GREATER polarity?

• HCl
• CCl4

A diatomic molecule like O2 is always_______ because electrons are shared ________.

• nonpolar; equally
• polar; equally
• nonpolar; unequally
• nonpolar; unequally

If Bromine bonds with Hydrogen, a ____________ bond forms.

• polar covalent
• nonpolar covalent
• metallic
• ionic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When you are asked to find bond polarity, compare EN values of each bonding atom to the central atom

• true
• false

Tags

NGSS.HS-PS1-1

The electronegativity difference in the bonds of CH4 (methane) is:

• 0.4
• 5.9
• -0.4
• 1.7

Tags

NGSS.HS-PS1-1