<u>Alitta Succinea</u> is the name of the Clam Worm
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The valence of lead is 4.
Hence the name of the compound is called Lead (IV) oxide.
<h3>Further explanation</h3>
Given
PbO₂ compound
Required
The valence of Pb
Solution
The oxidation number of element O in the compound = -2, except for OF₂ the oxidation state = + 2 and the peroxides (Na₂O₂, BaO₂) the oxidation state = -1 and superoxide, for example KO₂ = -1/2.
The oxidation state in the uncharged compound = 0,
So The oxidation state of Pb :
Pb + 2.(-2) = 0
Pb - 4 = 0
Pb = +4
<span>There is approximately 15 degrees of Longitude for each tine zone. 24 x 15 = 360.
Latitude does not affect time, however it does affect what time the Sun will rise & set.
hope this help!</span>
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