Quiz 2 - Sci 401

This is a well-known method used for purification of Nickel.

• Electrolysis

• Blast Furnace

• Mond process

• Zone Refining

A molecular compound that can be distinguished by a high molar mass, ranging into thousands and even millions of mass and they are made up of many repeating units is called

(a)  

This type of polymer structure exists in High Density Polyethylene

• Linear

• Branched

• Cross-linked

• Network

This type of polymer can occur at Crystal and Expandable form and are both rigid and degraded in many organic solvents.

• Polyethylene

• Polyvinyl Chloride

• Polypropylene

• Polystyrene

A polymer that is soften upon heating and later liquefy, then it hardens when cooled is called

(a)  

These are materials where the sizes of the individual building blocks are less than 100 nm (a very small scale), at least in one dimension (nm; equivalent to the diameter of approximately 500 atoms)

(a)  

Within a water molecule, what bonds are present?

• Covalent bonds

• Van der Waal's

• Hydrogen Bonds

• Metallic Bonds

Statements stated below are general characteristics of Groundwater EXCEPT

• Composition is varying

• Mineral content is high

• Has low or no color

• Absence of dissolved oxygen

This is the primary mechanism by which water is released from the

atmosphere

(a)  

These are water pollutants that are oxidized in the receiving

water resulting in the consumption of dissolved molecular oxygen

• Nutrients

• Oxygen-Demanding Material

• Suspended Solids

• Pesticides