Polar

The bond between O and F is polar covalent. Which direction will the arrow be pointing to show the direction that electrons are moving in this bond?

• The arrow will point towards O, which will be partially positive

• The arrow will point towards O, which will be partially negative

• The arrow will point towards F, which will be partially positive

• The arrow will point towards F, which will be partially negative

What type of bond contains atoms with "partial" charges?

• Polar Covalent

• Non-Polar Covalent

• Ionic

The bond between C and Cl is polar covalent. That means

• there is a pair of electrons shared equally between them

• there is a pair of electrons shared unequally between them

• an electron will be stolen from one and given to the other

Tags

NGSS.HS-PS1-1

Attractions between polar molecules are stronger than attractions between nonpolar molecules.

• true

• false

Tags

NGSS.HS-PS2-6

A molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons is a _______________.

• nonpolar molecule

• polar molecule

• ionic compound

• metalic compound

Tags

NGSS.HS-PS1-3

Atoms of a polar molecule share their atoms ___________.

• Equally

• Unequally

Polar molecules have

• no charges.

• slight positive and negative charges on opposite ends of the molecules.

• only positive charges.

• either positive or negative charges, but not both.

Tags

NGSS.HS-PS2-6

Why is it difficult to wash oil from your hands with plain water?

• Both substances are polar. Like polarities repel.

• Both substances are nonpolar. Like polarities repel.

• Water is nonpolar, and oil is polar, so they will not combine.

• Water is polar, and oil is nonpolar, so they will not combine.

The boiling point of polar molecules is __________ the boiling point of nonpolar molecules.

• lower than

• equal to

• higher than

Tags

NGSS.HS-PS1-1

Polar molecules will dissolve in other polar molecules and nonpolar molecules will dissolve in other nonpolar molecules.

• True

• False