water chem atomic structure jan 2022

The water molecule is a great thing. Which characteristicsbest describe water.

• universal solvent

• universal solute

• ionic bond

• all of the above

The chemical compound of water is

• HO
• H₂O
• H₃O
• HO₂

Pure water has a

• Neutral pH 
• Negative pH
• Positive pH
• Both Negative and Positive pH

A Compound that is being dissolved is called a

• Solution
• Solute
• Solvent
• Suspension

A solvent is...

• substance into which the solute dissolves
• a compound being dissolved
• a substance that does not dissolve
• None of the above

A water strider can skate along the top of a pond because:

• covalent bonds result in water cohesion
• hydrogen bonds result in water cohesion (surface tension)
• water striders have adapted to take advantage of water cohesion
• low surface tension of water

Attractions between water molecules are called

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

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

Refer to the picture of water sticking to a leaf; this is occurring because of:

• Adhesion

• Cohesion

tendency of molecules of the same kind to stick to one another

• cohesion
• adhesion
• solution
• polar molecule