The formula for lead chromate is PbCrO4. This is because the Pb is the lead part- it is the first in the formula with one lead atom. Next is CrO4- chromate. It has a negative charge (-2) and it stands for one chromium atom and four oxygen atoms.
Explanation:
Strength of intermolecular forces depends on the number of carbon atoms present in a compound. More is the number of carbon atoms attached linearly to each other more will be the surface area occupied by it. Hence, more is the strength of the compound.
This means that more is the branching present in a compound or lesser is the number of carbon atoms present in it then less will be the strength of intermolecular forces in the compound.
Thus, we can conclude that given compounds are placed in order of decreasing strength of intermolecular forces as follows.
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Answer:
1. Rutherford did the scattering experiment and observed that some of the rays bounce back. He concluded that there is a mass in which positive charge is concentrated. This marks the discovery of nucleus.
2. J.J Thomson discovered electrons by conducting cathode ray experiment.
3. Dalton postulated that matter is made up of small particles caled atoms
Answer:
only 2 electrons can be occupied in atomic orbital.
(3.5mol)(24.106 g/1mol c6h6) =84.371 g C6H6