Uranium has an atomic weight of 238 amu.
weight of one mole of uranium = /mol
weight of one mole of oxygen = 16.00 g
the molar mass or molecular weight for u205 is /mol.

U= 238g/mol

U2O5= 556g/mol

Explanation:

Since U= 238

O=16

U3O5= 2(238)+3(16)=556g/mol

- decrease the number of plants and animals living in the water.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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