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you are absolutely right. I'll make the videos slower

which question??

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which question?

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True. The molten lead (II) bromide will dissociate to form lead which is the greyish white matter deposited at the cathode and a brownish gas which is bromine

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Hey Emma. Sorry for the delay. Anyway the question is based on the concept of manometers. Manometers are the pressure measuring devices which measure pressure at a point in a fluid. It is based on the principle of balancing of the column of the fluid against the pressure. U- tube manometers are the transparent glass tubes bent in a U shape where both ends are exposed to the atmospheric pressure. With that in mind, the formula for calulating pressure in relation to height and density is p = hpg. Hope this answer helps

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