Answer:

Explanation:
number of moles of solute=0.03mol
volume of solution in dm³=1.2dm³
solubility=?
as we know that



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The pure substance of water mixes with the waste. The waste does not dissolve into the water, therefore it is a mixture.
They are both important cell signaling molecules and both of them contain phosphate groups.
45 is the atomic mass of the atom. And the name is Scandium
Explanation:
a) 4P + 3O2 --> 2P2O3
b) The chemical reaction above limits the number of molecules of P2O3 produced for every 4 atoms of P.