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helena-walker_6096cee1ecf54
helena-walker_6096cee1ecf54
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helena-walker_6096cee1ecf54
Joined
May 2021
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May 2021
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o zinco em pó, porque está em mais contato com o H2SO4
in
Quem é fera ne quimica? responda...?
Comment by
helena-walker_6096cee1ecf54
May 2021
