This is so as the liquid you are heating is copper (II) sulfate (I think so) so when you heat it to saturation, there will still be some water molecules left behind, which will allow copper (II) sulfate crystals to be formed since there is water of crystallisation. so the formula is (CuSO4.5H2O).
Hence, if you heat it for a longer period of time when all the water has evaporated, you will obtain a white powder (CuSO4) as crystals cannot form without water of crystallisation
The true ratio of atoms in a molecule or formula unit is called molecular formula
<h3>What is empirical formula?</h3>
This is the simplest formula that shows the ratio of the different atoms present in a compound.
<h3>What is molecular formula?</h3>
This is the formula of a compound which gives the true or actual ratios of the different atoms present in a compound
<h3>What is molar mass?</h3>
The molar mass of a compound is defined as the sum total of the molar masses of the different atoms present in the compound.
<h3>What is percentage composition?</h3>
This gives the proportion of the different atoms present in a compound.
From the above definitions, we can conclude that the correct answer to the question is molecular formula
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Answer:
N2 = 2 atoms.
2H2 = 4 atoms.
NH3 = 4 atoms.
Also: this is an uneven chemical equation, make sure there are the same amount of atoms on each side (in total).
