Properties of Water

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Why can water have no net charge but have slight charges in different parts of the molecule?

• The oxygen end is slightly negative and the hydrogen end is slightly positive
• The hydrogen end is slightly negative and the oxygen end is slightly positive
• The hydrogen and oxygen ends change in polarity
• Because it is hydrophobic

Attractions between water molecules are called

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

Which property of water will cause water to bead up on glass?

• Adhesion
• Cohesion
• Ability to dissolve substances
• High specific heat

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive

What is the property that makes water molecules attracted to water molecules?

• Cohesion
• Adhesion
• Universal Solvent
• Changes Density

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

What is the overall charge of water?

• Positive
• Neutral
• Negative
• Unable to determine.

When a substance does not dissolve in water, a _____ will form.

• Homogeneous Mixture
• Covalent Bond
• Polar Bond
• Suspension