題目列表(包括答案和解析)
3、目前下列化學(xué)制品在生活中不準使用的是 ( )
A.含磷洗衣粉 B.可降解塑料袋
C.高效低毒蚊香 D.合成纖維衣服
2、某固體物質(zhì)受熱后變?yōu)闅鈶B(tài)物質(zhì),這種變化屬于:( ) A.物理變化 B.可能是物理變化,也可能是化學(xué)變化
C.化學(xué)變化 D.既不是物理變化,也不是化學(xué)變化
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1、下列變化屬于化學(xué)變化的是( )
A.石塊雕成石獅 B.海水蒸發(fā)得到食鹽
C.鐵生銹 D.自行車輪胎受熱爆炸
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