AP Chem Thou Shalt Not Forget

Combustion reactions produce what two substances?

• Water Vapor and Carbon Dioxide

• Carbon Dioxide and Oxygen

• Oxygen and Water Vapor

As the electronegativity difference between 2 atoms increases, the polarity of the bond ____________________

• increases

• decreases

What type of bond forms between hydrogen and chlorine?

• polar covalent

• non-polar covalent

• ionic

• hydrogen bond

Tags

NGSS.HS-PS1-1

What is the total # of covalent bonds carbon can form when drawing a Lewis structure?

• 12

• 6

• 4

• 8

Tags

NGSS.HS-LS1-6

What is the bond angle in H₂O?

• 120

• 90

• 180

• 104.5

Are asymmetrical molecules polar or nonpolar?

• Polar

• non-polar

• neither

What is the bond angle in NH₃

• 120

• 107.3

• 180

• 90

Count the number of sigma and pi bonds in this molecule:

• 13 sigma, 1 pi

• 14 sigma, 2 pi

• 1 sigma, 14 pi

• 2 sigma, 13 pi

Tags

NGSS.HS-PS1-3

Why are asymmetrical molecules polar?

• Their dipoles do not cancel

• Their dipoles cancel

What order is this graph?

• Zero

• First

• Second

• Third

Tags

NGSS.HS-PS1-5