### element | chlorine:

Elemental chlorine
* breaks up the lignin molecule by adding chlorine to the lignin.
* pale, yellowy green gas at room temperature.

Gaseous chlorine
* is pumped into liquid aluminum to react with and remove impurities.
* reacts with hydrocarbons to form chlorinated hydrocarbons.

Liquid chlorine
* burns the skin and gaseous chlorine irritates the mucus membranes.
* causes frost burns and is corrosive to human tissue.
* is amber in color
  - available in many forms, including laundry bleach and postharvest wash materials
  - mixed into drinking water and swimming pools to destroy bacteria
  - shipped under pressure in steel containers
  - used to control allergy, slime, etc

Total chlorine
* combination of free chlorine and combined chlorine.
* is simply the sum of combined and free levels
  - the sum of the free chlorine and chloramines present

Computer hardware
* collection of switches.
* is an element
  - computer hardware
  - devices
  - electronic devices
  - products
  - the platform from which the applications operate

### element | computer hardware:

Mainframe
* are digital computers
  - large centralized computers
  - machines
  - powerful servers that predate most computing systems available today
* are the computer types most attacked by worms
  - computers at the heart of many businesses and government agencies
  - largest and faster type of computers
* is computer hardware
  - electronic equipment
  - one of the largest computer animation houses in the world
* tend to be large physically and provide server power to multiple computers and users.

Sequencer
* Most sequencers are computer programs, but some are built in to keyboards.
* are apparatus
* come in different sizes and shapes.
* is computer hardware

Different element
* crystallize at different temperatures.
* have different physical properties.
* reflect and absorb light in characteristically different ways.

### element:

Dubnium
* has no biological role
  - commercial applications
  - seven recognized isotopes
  - produced artificially and only small amounts have been made.
  * It has the symbol 'Db'. It has the atomic number 105. It very radioactive element that does not exist in nature. It has to be made. The isotope that has the longest half-life only has a half life of 32 hours. Dubnium transactinide element
* radioactive synthetic metal and has only been produced in tiny amounts.
* synthetic element about which little is known.
  - or super-heavy element

Essential element
* are very important to the plants' growth.
* require for growth
  - plant growth

### element:

Ether
* Most ethers readily form vapors and are extremely flammable.
* Some ethers form explosive peroxides on exposure to air and light.
* are generally unreactive compounds
  - relatively inert and make good organic solvents
  - the most notorious peroxide formers
* behaves much like a fluid through the Void.
* can act as a narcotic, depressing the central nervous system
  - form dangerous peroxides on exposure to air and light
* contain an oxygen attached to two carbons as the characteristic functional group.
* have an oxygen bond between two carbons.
  - mediums
  - organic compounds