Water and its Solutions Practice

Match the following mixtures with the correct image.

e

a

c

heterogeneous mixture

pure mixture

suspension

colloid

elemental mixture

compound

solution

Sugar water is a 

• solution
• suspension
• colloid

Water droplets take a spherical shape (as pictured) because of ____________

• adhesion
• cohesion
• capillary action
• solubility

Milk is a 

• solution
• suspension
• colloid

van der Waals forces are forces of attraction between _____.

• magnets

• molecules

• charged particles

• ions

Water is a universal solvent because it...

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

Match the following

• colloid

• substances that release hydrogen ions when dissolved in water

• solution

• mixtures that have a uniform distribution throughout

• suspension

• mixtures in which the particles settle out when left undisturbed

• bases

• mixtures that appear uniform but do not have a uniform distribution

• acids

• substances that release hydroxide ions when dissolved in water

Compared with ionic and covalent bonds, van der Waals forces are ​ (a)   forces of attraction that are ​ (b)   to break.

• weak
• easy
• strong
• difficult

What kind of interactions occur between the gecko's feet and the window glass?

• nuclear bonds

• van der Waals forces

• covalent bonds

• ionic bonds

This water strider does not sink because (of) _____.

• water is non-polar

• surface tension

• heat capacity

• adhesion