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市场上常有黑心商贩用假黄金冒充真黄金来欺骗消费者的现象,那么我们怎样来鉴别真假黄金呢?真黄金和假黄金的颜色很相近,用我们的肉眼很难鉴别。但是,二者成分却截然不同。真黄金的成分是金(Au),假黄金的种类较多,通常是铜(Cu)和锌(Zn)的合金,也有的是在其他的金属表面镀上一层金色物质。现在小明手中就有两枚戒指,一枚是真黄金戒指,一枚是假黄金戒指。但究竟哪一枚是真,哪一枚是假呢?就此问题,小明做了如下
Often black market traders fake gold posing as real gold to deceive consumers phenomenon, then how do we distinguish between genuine and fake gold? True gold and fake gold color is very similar, with our naked eye is difficult to identify. However, the two components are quite different. The real gold is gold (Au), there are many types of fake gold, usually copper (Cu) and zinc (Zn) alloy, and some other metal surface is coated with a layer of gold material. Xiao Ming now has two hands in the ring, one is a real gold ring, one is a fake gold ring. But which one is true, which one is false? On this issue, Xiao Ming did the following