F.4Chemistry balanced equation

[匿名]

2012-02-04 8:29 pm

For each of the following reactions,give
i. the name of salt formed
ii. a balanced chemical equation with physical states.
iii. an ionic equation for the reaction with physical states.

a) magnesium + dilute ethanoic acid

b) aluminium oxide + dilute sulphuric acid

c) copper(II) carbonate+ dilute hydrochloric acid

d) sodium sulphate solution + cakcium nitrate solution

回答 (1)

賣女孩的火柴

2012-02-05 1:42 am

✔ 最佳答案

a)
i) magnesium ethanoate
ii) Mg(s) + 2CH3COOH(aq) → (CH3COO)2H(aq) + H2(g)
iii) Mg(s) + 2H^+(aq) → Mg^2+(aq) + H2(g)

b)
i) aluminium sulphate
ii) Al2O3(s) + 3H2SO4(aq) →Al2(SO4)3(aq) + 3H2O(l)
iii) Al2O3(s) + 6H^+(aq) → 2Al^3+(aq) + 3H2O(l)

c)
i) copper(II) chloride
ii) CuCO3(s) + 2HCl(aq) → CuCl2(aq) + H2O(l) + CO2(g)
iii) CuCO3(s) + 2H^+(aq) → Cu^2+(aq) + H2O(l) + CO2(g)

d)
i) calcium sulphate
ii) Na2SO4(aq) + Ca(NO3)2(aq) →CaSO4(s) + 2NaNO3(aq)
iii) Ca^2+(aq) + SO4^2-(aq) → CaSO4(s)

參考: 賣女孩的火柴

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