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一、产生物质质量与加入物质质量的关系 例1 向含有盐酸和氯化铜的混合液中加入氢氧化钠溶液,产生沉淀的质量 Q与加入氢氧化钠溶液的质量W的关系用图1表示,其中正确的是( ).
First, the relationship between the quality of the produced material and the mass of the added material Example 1 The sodium hydroxide solution was added to the mixture containing hydrochloric acid and cupric chloride. The relationship between the mass Q of the resulting precipitate and the mass W of the sodium hydroxide solution is shown in Figure 1. The correct one is ().