想要溫CHEM快捷的方法!另寫出Chemistry的chemistry equation!要balalced的!

2007-01-31 12:38 am

1potassium+oxygen->potassium superoxide
2.sodium+oxygen->sodiumoxide
3.calcium+oxygen->calcium oxide
4.Magnesium+oxygen->magnesium oxide
5.aluminium+oxygen->aluminium oxide
6.Zinc+oxygen->zinc oxide
7.iron+oxygen-> iron(II)iron(III)oxide
8.lead+oxygen->lead(II)oxide
9.Copper+oxygen->copper(II)oxide
10.Mercury + oxygen->mercury(II)oxide.

更新1:

1potassium+oxygen變potassium superoxide 2.sodium+oxygen變;sodiumoxide 3.calcium+oxygen變calcium oxide 4.Magnesium+oxygen變;magnesium oxide

更新2:

5.aluminium+oxygen變aluminium oxide 6.Zinc+oxygen變zinc oxide 7.iron+oxygen變 iron(II)iron(III)oxide 8.lead+oxygen變;lead(II)oxide 9.Copper+oxygen變;copper(II)oxide 10.Mercury + oxygen變mercury(II)oxide.

回答 (2)

[匿名]

2007-01-31 7:33 am

✔ 最佳答案

基本上最好ge方法就係溫notes 做下D exercise 咁架bo
有keep開ge話基本上可以駕輕就熟...

1. K(s) + O2(g) -----> KO2 (s)
2. 4 Na (s) + O2 (g) ------> 2 Na2O(s)
3. 2 Ca (s) + O2 (g) ------> 2 CaO(s)
4. 2 Mg(s) + O2(g) -----> 2 MgO(s)
5. 4 Al(s) + 3 O2(g) -----> 2 Al2O3 (s)
6. 2 Zn(s) + O2(g) -----> 2 ZnO(s)
7. 3 Fe(s) + 2 O2(g) -----> Fe3O4 (s)
8. 2 Pb(s) + O2(g) -----> 2 PbO(s)
9. 2 Cu(s) + O2(g) -----> 2 CuO(s)
10. 2 Hg(s) + O2(g) -----> 2 HgO(s)

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Sze Man

2007-05-25 5:52 am

some wrong answer.
K is 1+, O is 2-
4K + O2 ---- 2K2O

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