The electron dot structure for each molecule are:
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a. H:O:O:H
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The partial negative charges are on the Oxygen atoms.
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b. H:Cl:
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The partial negative charge is on the Chlorine atom.
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c. H:Br:
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The partial negative sign is on Bromine atom.
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d. H:O:H
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The partial negative sign is on the Oxygen atom.
0.2 g/mL
We can use the density formula <em>D = M/V</em>.
<em>D</em> = 6 g/30.0 mL = 0.2 g/mL
This is known as Rutherford's gold foil experiment. To align with J.J Thompson's Plum Pudding Model, he expects a beam of alpha particles to just pass through the gold foil undisturbed. However, some were deflected at certain angles. Alpha particles are positive, so it would just go straight through the nucleus, but will deflect if it hits the electrons. <em>Therefore, the answer is: </em><span><em>Particles that struck the nucleus went straight.</em></span>