2014年广东省深圳市中考化学试题及参考答案
2014年广东省深圳市中考化学试卷参考答案与试题解析 一、选择题(共10小题,每小题3分,满分30分)1.(3分)(2014•深圳)下列书写符合要求的是( ) A.氧离子:O2﹣B.2个氢原子:H2 C.氢氧化镁的化学式:Mg(OH)2D.铁离子:Fe2+2.(3分)(2014•深圳)如图,下列说法正确的是( ) A.铱原子的核外电子数是77 B.铱元素的相对原子质量是192.0g C.铱元素的质子数是115 D.铱元素不是金属元素3.(3分)(2014•深圳)下列判断正确的是( ) A.pH<7的雨水叫酸雨 B.PH越小,酸性越弱 C.证明溶液里面含有Cl﹣,只需要加入AgNO3溶液 ...
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