[20M] What is the full equations & ionic equestions?

👨🏻‍🏫 學術台化學

[匿名]

2006-12-08 7:12 am

20marks for answering all the questions although the answers are wrong or not!`=)

What is the full equations & ionic equestions for these metals+acids?

1). Calcium (Ca) + hydrochloric acid (HCL) ?
2). Calcium (Ca) + nitric acid (HNO3) ?
3). Calcium (Ca) + sulphuric acid (H2SO4) ?
4). Calcium (Ca) + phosphoric acid (H3PO4) ?
5). Zinc (Zn) + hydrochloric acid (HCL) ?
6). Zinc (Zn) + nitric acid (HNO3) ?
7). Zinc (Zn) + sulphuric acid (H2SO4) ?
8). Zinc (Zn) + phosphoric acid (H3PO4) ?

更新1:

9). Iron (Fe) + hydrochloric acid (HCL) ? 10). Iron (Fe) + nitric acid (HNO3) ? 11). Iron (Fe) + sulphuric acid (H2SO4) ? 12). Iron (Fe) + phosphoric acid (H3PO4) ?

更新2:

13). Magnesium (Mg) + hydrochloric acid (HCL) ? 14). Magnesium (Mg) + nitric acid (HNO3) ? 15). Magnesium (Mg) + sulphuric acid (H2SO4) ? 16). Magnesium (Mg) + phosphoric acid (H3PO4) ?

更新3:

You can answer part of the questions if you don't know the answer of the other part. and marks may be delivered to you.

回答 (2)

用戶164400

2006-12-08 7:51 am

✔ 最佳答案

1)Ca+2HCl--->CaCl2+H2
2)Ca+2HNO3--->Ca(NO3)2+H2
3)Ca+H2SO4--->CaSO4+H2
4)Ca+2H3PO4--->Ca3(PO4)2+3H2
5)Zn+2HCl---->ZnCl2+H2
6)Zn+2HNO3--->Zn(NO3)2+H2
7)Zn+H2SO4--->ZnSO4+H2
8)Zn+2H3PO4--->Zn3(PO4)2+3H2
9)Fe+2HCl--->FeCl2+H2
10)Fe+2HNO3--->Fe(NO3)2+H2
11)Fe+H2SO4--->FeSO4+H2
12)Fe+2H3PO4--->Fe3(PO4)2+3H2
13)Mg+2HCl--->MgCl2+H2
14)Mg+2HNO3--->Mg(NO3)2+H2
15)Mg+H2SO4--->MgSO4+H2
16)Mg+H3PO4--->Mg3(PO4)2+3H2

2006-12-07 23:57:35 補充：
ionic equation1)Ca+2H+--->Ca2++H22)Ca+2H+--->Ca2++H23)Ca+2H+--->Ca2++H24)Ca+6H+--->3Ca2++3H25)Zn+2H+---->Zn2++H26)Zn+2H+--->Zn2++H27)Zn+2H+--->Zn2++H28)Zn+6H+--->3Zn2++3H2

參考: 自己

👍 0 👎 0

FCC

2006-12-08 7:38 am

full equation 就係 metal + acid ---> Hydrogen + salt

eg.
1 Ca (s) + 2HCl (aq) ---> H2 (g) + CaCl2 (aq)
2 Ca (s) + 2HNO3(aq) ---> H2 (g) + Ca(HNO3)2 (aq)
3 Ca (s) + H2SO4 (aq) ---> H2 (g) + CaSO4 (aq)
4 3Ca (s) + 2H3PO4 (aq) ---> 3H2 (g) + Ca3 (PO4)2 (aq)

其實metal都係咁砌equation出黎.. but要自己balance番啦 ^^"

ionic就係睇每一條式入面aq既野... 有相同既野就可以delete左佢.. 跟住再加番d charge俾淨番個d aq既野

eg 1
full : Ca (s) + 2HCl (aq) ---> H2 (g) + CaCl2 (aq)
ionic : Ca (s) + 2H+ (aq) ---> H2 (g) + Ca 2+ (aq)

參考: 自己 =(

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