The answer is: <span>Sodium (Na) is very reactive because it does not have a full valence shell. Hope this helps :)
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To find the molecular formula of the compound, we get the molar mass of empirical formula CH2o which is 30 g/mol. We divided the molecular mass of 90.087 g/mol by 30, we get 3. Hence, we multiply each element by 3, getting the molecular formula of C3H6O3.
Here is your answer:
The crust and uppermost mantle make up the rigid outer layer of Earth, which is called the "lithosphere." The crust and the mantle makes up the lithosphere. The lithosphere is rigid outer part of the earth which contains the upper mantle and the crust.
Hope this helps!
<em>~Nonportrit</em>
