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A blue precipitate is formed when both a few drops, or excess, of NaOH is added to a solution of cobalt chloride; this is an example of an acid-base chemical reaction.The relevant equation is: [Co(H_2...

20/1000 *0.18
final answer 0.144 Answer must be explained in person. It is very difficult to explain in writing.

The answer stems from the lanthanide (or lanthanoid) contraction. In more detail, there is a steady decrease in the radii of atoms from Lanthanum through to Lutetium, despite the associated increase in th...

Ionisation energy is the energy required for one mole of gaseous atoms to lose one mole of electrons, hence forming one mole of gaseous ions.The ionisation energies for elements increases across the perio...

To answer this question, we need to know the relative number of atoms of each element present. This can be calculated by dividing the amount of an element present in the sample by the relative masses of t...