AP Chemistry Unit 2 Review

Which atom has the negative dipole in this molecule?

• Hydrogen

• Fluorine

• Neither

Tags

NGSS.HS-PS2-4

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

• increases

• decreases

Resonance structures differ by __________.

• number and placement of electrons

• number of electrons only

• placement of atoms only

• number of atoms only

• placement of electrons only

As the number of covalent bonds between two atoms increases, the distance between the atoms ______ and the strength of the bond between them ______.

• increases, increases

• decreases, decreases

• increases, decreases

• decreases, increases

• is unpredictable

The Periodic Table of Elements is most related to...

• Chemistry

• Geology

• Astronomy

• Biology

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the study of matter and how it changes?

• Biology

• Physics

• Chemistry

• Geology

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which of the following is an example of a single replacement reaction?

Tags

NGSS.HS-PS1-7

Which of the following is a balanced chemical equation for the reaction between hydrogen gas and oxygen gas to form water?

Tags

NGSS.MS-PS1-5

Which of the following is an example of a double replacement reaction?

The ability of an atom in a molecule to attract electrons is best quantified by the ______.

• electronegativity

• paramagnetism

• diamagnetism

• electron change-to-mass ratio

• first ionization energy