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Chemical Equations

Asked by Butterflywing | Jun 11, 2007 | GCSE Level > Chemistry > Homework
Butterflywing
Butterflywing asks:

Write a chemical equation (with state symbols) for:

1) The converstion of anhydrous copper sulphate to hydrated copper sulphate.
Ans: ?

2) The precipitation reaction between silver nitrate solution and sodium chloride solution.
Ans: AgNO3(aq)+2NaCl(aq)=AgCl2(s)+2NaNO3(aq)

3) Sodium chloride dissolving in water
Ans: NaCl(g)=Na+(aq) + Cl-(aq)

4) The precipitation reaction between calcium chloride and sodium carbonate solutions.
Ans: Na2CO3(aq)+CaCl2(aq)=2NaCl(s)+CaNO3(aq)

etutor answers:
CuSO4.5H2O = CuSO4 + 5H2O

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