chemistry vocabulary list 2
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- What do we call the property of some elements to exists in several forms in the same physical state. name three elements that do this.
- allotropy......Oxygen, Carbon, Sulfur
- What are three uses of the this gas(nitrogen)?
- fertilizer, nylon, refrigant.
- Who discovered oxygen and what was its original name?
- Joseph Priestley Schell.......diphlogieston
- How is this gas(nitrogen) prepared two ways?
- Haber process and ??????
- What protects us from the UV radiation from the sun and what destroys it?
- Ozone layer.........CFC's Clurofloracarbons
- Why is carbon-dioxide so important to living things?
- it is used in photosynthesis by plants
- Most abundant gas in the universe.
- hydrogen
- What are three uses of oxygen?
- weld metals together, get impurities out of steel, to help people with breathing problems to breathe easier
- What happens when trapped carbon dioxide insulates the earth?
- greenhouse effect
- If a glowing spint reignites in a gas, the gas is?
- Oxygen
- Name two ways to prepare hydrogen.
- single replacement and electrolysis
- List three ways to prepare oxygen.
- Decomposition of Hydrogen peroxide, potassium chlorate with magnesium catalyst, electrolysis
- What can the greenhouse effect lead to?
- melting of all or most of the polar ice caps.
- If a burning splint foes out with a popping sound in a sample of gas, the gas is?
- Hydrogen
- Name two ways in which ozone is produced?
- Ulraviolet rays and electrical currents.
- Who discovered hydrogen and what was its original name?
- Henry Cavendash......Phlogiesten
- How is most carbon monoxide produced?
- need answer.....
- Which gas when inhaled in large quantities combines with the hemoglobin in the red blood cells to kill you.
- CO...Carbon monoxide
- What are three uses of carbon dioxide?
-
Used in photosynethesis by plants.....
need other answers........ - Name three ways in which nitrogen is important.
- needed to produce amino acids, used to freeze blood, refrigerant
- Who gave us our present names of hydrogen and oxygen?
- Lavoisier
- The most important compound of nitrogen.
- NH3(ammonia)
- The most abundant gas in the atmosphere.
- need answer.......