4.酸+碱→盐+水　 HCl+NaOH=NaCl+H₂O　　　 H₂SO₄+2NaOH=Na₂SO₄+2H₂O

H₂SO₄+Ba(OH)₂=BaSO₄↓+2H₂O　　　　 Cu(OH)₂+2HNO₃=Cu(NO₃)₂+2H₂O

3.酸+金属氧化物→盐+水　　　 Fe₂O₃+6HCl=2FeCl₃+3H₂O　 Fe₂O₃+3H₂SO₄=Fe₂(SO₄)₃+3H₂O　 CuO+H₂SO₄= CuSO₄+ H₂O　 CuO+2HCl= CuCl₂+ H₂O

2.酸+氢前金属→盐+氢气 　2Al+6HCl= 2AlCl₃+3 H₂↑

Zn+H₂SO₄= ZnSO₄+ H₂↑　 　Fe+H₂SO₄= FeSO₄+ H₂↑ 　Mg+H₂SO₄= MgSO₄+ H₂↑

Zn+2HCl= ZnCl₂+ H₂↑　 Fe+2HCl = FeCl₂+ H₂↑　 Mg+2HCl = MgCl₂+ H₂↑

假如你叫王嘉,最近你和同学们就 “金钱就是一切吗?”进行了讨论.现在请你以 Do you think　 money is everything?为题,参照表内所提供的信息,写一篇英语短文.

注意: 1. 开头部分已写好,你只需接着写.

　　　 2. 所写内容必须包括表格中你同学的观点和你自己的至少三个观点.

　　　 3. 词数: 70个左右.

Do you think money is everything?

　　 　Recently I’ve had a discussion with my classmates about whether money is everything.　　　　　　　　　　　　　　　　　　　　　　　　　　　

2009年中考模拟试卷　 英语听力材料

80．Buy one! I don’t think the coats c_______a lot of money.(原创)

75．I’ll show Kate my pictures if she shows me h______.

(根据07年中考卷第74题改编)

76　 I w_______ whether it will rain or not tomorrow. (原创)

77 Listening to light music before g______ to bed will help you relax.

(来自九年级课本Unit 4 Section 3a 句子 改编)

78 I’m interested in a________, so I spend every Sunday going to the zoo.

79 The trees should be p________in spring.

74.As students, we should do our homework as c______ as we can.

(原创)