Oxidanes is an effort, in a lecture format, to describe a specific chemical of the elements hydrogen and oxygen: water.

Although the image contains a layer of cumulus clouds, at the horizon, the Atlantic Ocean meets the edge of the sky. Location :Salvador, Bahia, Brazil, July 4, 2008. Credit: Tiago Fioreze.

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Quiz Edit


1 Yes or No, The most common oxidane on the surface of the Earth is the liquid known as water.


2 Water occurs in the atmosphere as water vapor, and as a solid usually referred to as


3 Yes or No, Isotopic exchange between ice and water is found to take place in temperate glaciers.


4 True or False, The difference between geochemical reactions and astrochemical reactions is that astrochemical reactions are restricted to Earth.


5 Complete the text:

Oxygen-isotope analyses of ice and

from the Saskatchewan Glacier,

, and the Malaspina Glacier, Alaska, show that

in ratios are likely to be of considerable value in glaciological research.

6 Yes or No, A clear liquid having the chemical formula H2O is called water.


7 True or False, Generally, geologic materials are isotopically lighter than natural water samples because of the preferential retention of 6Li in the solid phase.


8 Complete the text:

The discoveries of water ice on the

, Mars and Europa add an

component to the field, as in "astroglaciology".

9 Yes or No, Icequakes are seismic tremblings caused by sudden movement within a glacier or ice sheet, such as from a fracturing crevasse.


10 True or False, Anyone who has dropped an ice cube into a glass of water knows ice snaps under stress.


11 Yes or No, Known icequake triggers include opening and closing of the fractures called crevasses; glaciers tearing away from sticky bedrock; water runoff; and calving, the breaking off of an iceberg.


Hypotheses Edit

  1. There is at least one chemical unique to Earth.

See also Edit

External links Edit

{{Chemistry resources}}