1.1 Properties of Water/ Hydrogen Bonding

TRUE OR FALSE:

Hydrogen bonds are very strong interactions between two atoms.

• True

• False

Hydrogen Bonds typically occur between atoms of hydrogen involved in this type of bond:

• Ionic

• Nonpolar Covalent

• Polar Covalent

• Nonpolar AND Polar Covalent

Hydrogen bonds are VERY important in determining the many properties of this very important molecule

Tags

NGSS.HS-ESS2-5

The Oxygen atoms in the molecule shown have this charge:

• Positive

• Partial Positive

• Negative

• Partial Negative

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The Hydrogen atoms in the molecule shown have this charge:

• Positive

• Partial Positive

• Negative

• Partial Negative

Tags

NGSS.HS-PS1-2

Water changes from a liquid to a gas

• Evaporation

• Condensation

• Precipitation

• Run off

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Water changes from a gas to a liquid

• Evaporation

• Condensation

• Precipitation

• Run off

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Tags

NGSS.MS-PS1-4