The open spaces in water's crystal structure make it possible for

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The open spaces in water's crystal structure make it possible for <span>aquatic life to exist at the north pole.

It is good to know that, at the north pole, when the temperature drops below zero, only the top layer of the water freezes. Underneath this freezing layer, water remains in its liquid form, thus, allowing marine life to exist. As for oxygen, it is also trapped underneath the ice layer. </span>

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Calculate the mass of atoms of carbon and 3 molecules of hydrogen

PSYCHO15rus [73]

The mass of atoms of carbon and 3 molecules of hydrogen : 18 g/mol

<h3>Further explanation </h3>

An atomic mass unit ( amu or "u") is a relative atomic mass of 1/12 the mass of an atom of carbon-12.

The molar mass(molecular mass-formula mass-molecular weight(MW)) of a compound is the sum of the relative atomic mass (Ar) of the constituent elements of the compound

Can be formulated :

M AxBy = (x.Ar A + y. Ar B)

The mass of atom of Carbon(C)⇒Ar = 12 g/mol

The mass of 1 molecule of Hydrogen - H₂(MW) : 2 g/mol

The mass of 3 molecules of Hydrogen : 3 x 2 = 6 g/mol

So the mass of atoms of carbon and 3 molecules of hydrogen :

$\tt 12+6=18~g/mol$