Properties of Water

In a water molecule, shared electrons spend more time around the oxygen atom than the hydrogen atoms. As a result, the oxygen atom is

• positive

• negative

What is a physical combination of two or more substances?

• mixture

• solution

• suspension

• solute

When sugar is dissolved in water, water is the

• solute

• solvent

• solution

When sugar is dissolved in water, sugar is the

• solute

• solvent

• solution

While preparing a cell culture, a scientist places a colony of bacteria into distilled water and stirs it. This mixture of water and living cells would best be called a

• mixture

• solution

• suspension

What is the pH of pure water?

• 3

• 7

• 10

Why is water considered to be a polar molecule?

• it has a north pole and south pole

• it is arranged in a straight up and down pattern

• It has a positive charge on one and a negative charge on the other end

Hydrochloric acid is a(n)

• acid

• base

• neutral

Sodium hydroxide is a(n)

• acid

• base

• neutral

Tomatoes are a(n)

• acid

• base

• neutral