Answer: A molecule of a compound is formed by bonding atoms of different elements through chemical bonding. The number of each type of atom present in one molecule of the compound is represented by a suffix to the symbol of the element which representing the formula of the compound. C12H22O11 is a formula of a compound consists of carbon, hydrogen and oxygen elements. There are 12 carbon atoms, 22 hydrogen atoms and 11 oxygen atoms in one molecule of C12H22O11. Therefore, the numbers 12, 22 and 11 represent number of atoms.
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Answer:
The oxygen revolution happened about 2.5 billion years ago. ... Then oxygen started to accumulate in the atmosphere. Oxygen is toxic to anaerobic organisms and this increase in atmospheric oxygen killed much of the life that had evolved to this point generating a huge mass extinction.
Explanation:
Tymine (t) can only pair with (a) in a dna strand. And the other letters which are G and C can only pair with each other. So A can be with T, T can be with A..... G can be with C and C can be with G.
the letters stand for:
A: adenine
G: guanine
C: cytosine
Explanation:
It responds to big changes including changes in output from the sun, plate tectonic movements, and random asteroid impacts from space.
<span> shifts in the Earth's crust, earthquakes</span>
