Properties of Water Quiz

Why is water considered a very unusual substance?

• It is not affected by gravity.

• It has a lower density when solid than when liquid.

• Oxygen has a lesser attraction for the electrons in the bond than hydrogen.

• It is colorless and odorless.

What is the polarity of water due to?

• The equal pull of the hydrogen and oxygen atoms.

• The unequal pull of the hydrogen and oxygen atoms.

• The hydrogen atoms taking on a partial negative charge.

• The oxygen atoms taking on a full positive charge.

What kind of charge does hydrogen take on in a water molecule?

• A partial negative charge

• A full positive charge

• A partial positive charge

• No charge

What is the term used to describe the attraction between water molecules?

• Magnetic force

• Cohesion

• Adhesion

• Gravitational pull

What causes water molecules to stick together?

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

• Metallic bonds

What occurs when water molecules are attracted to other materials?

• Cohesion

• Adhesion

• Repulsion

• Condensation

What is the purpose of the activity involving a dropper and a penny?

• To measure the volume of water

• To demonstrate the stickiness of water molecules

• To test the strength of the penny

• To calculate the density of water

Hydrogen bonds are present between all water molecules, but the arrangements are different. When liquid water freezes into a solid, the atoms spread out. Thus, ice is _____ dense than liquid water.

• more

• less

• equally

• unpredictably

Water can dissolve only _____ substances!

• polar

• nonpolar

• colored

• odorless

Oil is _____ which is why oil and water do not mix.

• polar

• nonpolar

• soluble

• aqueous