A 锌+稀硫酸 B 锌+稀硝酸 C 锌+稀盐酸 D 锌+稀磷酸

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164411501150.jpg" alt="" border="0" /> B 冰 C AgI D 萤石

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164463866386.jpg" alt="" border="0" /> B KOH C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164458305830.jpg" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164490689068.jpg" alt="" border="0" />

A 银 B 镁 C 铝 D 铜

A 生石灰 B 石灰石 C 碳 D 纯碱

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164499229922.jpg" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/2013010916440176176.jpg" alt="" border="0" /> C NaOH D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164577387738.jpg" alt="" border="0" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164559305930.jpg" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164521712171.jpg" alt="" border="0" /> C C0 D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164598449844.jpg" alt="" border="0" />

A 氢氧化钠 B 锌粉 C 铝粉 D 铁屑

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164577487748.jpg" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164519431943.jpg" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164515451545.jpg" alt="" border="0" /> D NaClO

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164590619061.jpg" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164596759675.jpg" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164597139713.jpg" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130109164542414241.jpg" alt="" border="0" />