Water

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

The Oxygen atoms in the molecule shown have this charge:

• Positive

• Partial Positive

• Negative

• Partial Negative

The Hydrogen atoms in the molecule shown have this charge:

• Positive

• Partial Positive

• Negative

• Partial Negative

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Which of the following is LEAST likely to dissolve in water?

• nonpolar fats and oils
• polar sugar molecules
• salt made of a positive sodium ion and a negative chloride ion
• all of the substances will dissolve easily in water

Tags

NGSS.HS-PS1-1

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

• Water is an acid.
• Water is a versatile solvent.
• Water has a high heat capacity.
•  Water acts as a buffer.

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS3-4

Why does ice stay at the top of oceans instead of sinking to the bottom?

•  Ice is colder than liquid water.
• Ice is less dense than liquid water.
• Ice is more dense than liquid water.
• Ice is warmer than liquid water.

Water molecules stick together forming a "skin" on water known as ______ _________ allowing light objects to float.

• hydrogen bonding

• opposites attract

• surface tension

• polar molecule