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Mai Phuong Thuy is the eldest sister in a family of two siblings. Her father Mai Xuan Quang died when she was six. Her mother Nguyen Phuong Lan used to be a tax officer. Before competing Miss Vietnam 2006, she used to a model under New Talent Modelling Agency. She joined the agency via a friend's introduction.
Lead(IV) hydroxide, Pb(OH) 4, also called ortho-plumbic acid, is the notional conjugate acid of the ortho-plumbate(IV) ion, PbO 4− 4, found in compounds such as calcium orthoplumbate, Ca 2 PbO 4. [ citation needed ] Like its tin analog Sn(OH) 4 , Pb(OH) 4 has not been isolated.