Question

ÏÂÁÐÀë×Ó·½³ÌʽÖÐÕýÈ·µÄÊÇ                              £¨   £©

A£®ÏòNaHSO₄ÈÜÒºÖеμÓBa£¨OH£©₂ÖÁSO₄^2-³ÁµíÍêÈ«2H⁺ + SO₄^2- + Ba²⁺ + 2OH^- = BaSO₄¡ý+ 2H₂O

B£®Ì¼ËáÄÆÈÜÒºÓë´×Ëá·´Ó¦£ºCO₃^2- + 2H⁺ = CO₂¡ü+ H₂O

C£®ÇâÑõ»¯ÑÇÌúÓëÏõËá»ìºÏ£ºFe£¨OH£©₂ + 2H⁺ = Fe²⁺ + 2H₂O

D£®½«1~2mLÂÈ»¯Ìú±¥ºÍÈÜÒº¼Óµ½20mL·ÐË®ÖУºFe³⁺ + 3H₂O = Fe£¨OH£©₃£¨½ºÌ壩 + 3H⁺

Answer 1

D