2013-2014学年度第一学期期末质量调研九年级化学测试题(九下)（2013-2014 semester of the end of the first semester of quality survey, grade nine chemistry test questions (nine below)）.docVIP

2013-2014学年度第一学期期末质量调研九年级化学测试题(九下)（2013-2014 semester of the end of the first semester of quality survey, grade nine chemistry test questions (nine below)） C, nitrogen, hydrogen, carbon monoxide, D, ammonia, sulfur dioxide, hydrogen chloride 14, iron powder mixed with a small amount of copper oxide, the iron powder into a certain quality of dilute sulfuric acid, after the full reaction, found that iron residue The substance in the solution is residual: H 1, O 16, S 32, Fe 56, Zn 65, A, must be FeSO4 and CuSO4 B, definitely CuSO4, maybe FeSO4 First, select the title C, must be FeSO4, no CuSO4, D, definitely FeSO4, there may be CuSO4 1, the amount of metal lost in the world every year because of corrosion is huge, so preventing metal corrosion has become a major problem in scientific research. The gold 16 genera of corrosion and protection measures is not true A, iron rust is the essence of iron and oxygen in the air, water vapor and other chemical changes have occurred in the same B, iron products in Qingdao than in Dongying, C is easy to rust on iron products surface paint can prevent the rusting of iron and aluminum D the anti rust performance than iron, available in steel ball 2, to make a wash pan close to saturated potassium nitrate solution into a saturated solution, and in the premise of not changing its mass fraction, can take measures A, B, C, solute to reduce the temperature of evaporation of moisture and temperature of D 3, a, B and C of three kinds of metal, the B and C were immersed in dilute sulphuric acid, ethylene propylene dissolved, not dissolved; if a nitrate C in 17, the image and the corresponding narrative is consistent is A solution is precipitated in solution. The activity of the order of a, B and C from three kinds of metal is iron and aluminum A. quality respectively with the same concentration of dilute sulfuric acid and sufficient reaction of B. to H2SO4 and MgSO4 mixed A, a, B, C, B, B, a, C, C, C, a, C, B, B, D, B, C, a, a solution of Na