化学与我们的生产、生活息息相关.现有以下物质
①食醋 ②Ca3(PO4)2③葡萄糖 ④活性炭 ⑤熟石灰 ⑥维生素A ⑦大理石 ⑧CH4
请选择合适物质的序号填空:
(1)农业上常用作磷肥的是____ ;(2)能为人体提供能量的物质是____ ;
(3)常用作厨房调味品的是____ ;(3)常用于改良酸性土地壤的是____ ;
(5)常用作建筑材料的是____ ;(6)最简单的在机化合物是____ ;
(7)人体缺乏后能导致盲症的是____ ;(8)常用于冰箱除异味的物质是____ .
下面加下划线字注音有误的一项是( )
My name is Kitty. I have a very big and nice room and I have a great school things collection. My brother’s room is near my room. He is Mike. And he has a small sports collection. I have twenty erasers, ten pencils, nine rulers and eight pens in my schoolbag. My brother has two baseballs, four soccer balls and five basketballs under his bed.
调味品是重要的食品添加剂,将下面调味品加入水中,不能形成溶液的是( )