题目

用适当的化学符号或化学方程表示：（1）硫酸铝           ；  （2）2个磷原子               ；(3)  4个磷原子构成的白磷分子        ；（4）高锰酸钾中锰元素化合价为+7价              ；（5）二氧化碳通入澄清石灰水                                                    【1】【1】A s_____ can catch insects by web.【2】【2】He went cold all over when he heard the g_____ story.【3】【3】Don't eat c_____ too much.It's bad for your teeth.【4】【4】This meal is my t_____,so put your money away.【5】【5】It's a tradition to play t_____ on people on April 1st.