CBSE Class 10 Answered
Balance the following chemical equations:
a) HNO3 + Ca(OH)2 --- Ca(NO3)2 + H2O
b) 2Al(s) + 3CuCl2 (aq) - AlCl3 (aq) + Cu (aq)
c) FeSO4(g) + 3CuCl2 (aq) - Fe2O3(s) + SO3(g)
d) NaOH + H2SO4 BaSO4 + 2HCl
Balance the following chemical equations and identify the type of chemical reaction:
a)Mg(s) + Cl2(g) MgCl2(g)
b)TiCl4 + Mg(s) Ti(s) + MgCl2(s)
c)CaO(s) + SiO2(s) - CaSiO3(s)
Identify the reducing agent in the following reactions:
a)4NH3 + SO2 4NO + 6H2O
b)H2O + F2 HF + HOF
c)F2O3 + 3CO 2Fe + 3CO2
d)2H2 + 2O2 2H2O
Identify the oxidizing agents(oxidant) in the following reactions:
a)Pb3O4 + 8HCl 3PbCl2 + Cl2 + 4H2O
b)2Mg + O2 2MgO
c)CuSO4 + Zn Cu + ZnSO4
d)V2O5 + 5Ca 2V + 5CaO
e)3Fe + 4H2O Fe3O4 + 4H2
f)BaCl2 + H2SO4 BaSO4 + 2HCl
Asked by gganga | 21 May, 2016, 05:22: PM
Expert Answer
Dear ggangabagirathi@gmail.com
Thanks for asking us a question in Ask the Expert section of TopperLearning.com.
In case of multiple questions within a query, please post each question individually.
However, answer to your first question is,
(I)
a) Ca(OH)2 + 2 HNO3 → Ca(NO3)2 + 2 H2O
b) 2 Al(s) + 3 CuCl2(aq) → 2 AlCl3(aq) + 3 Cu(aq)
c) FeSO4(g) + 3CuCl2 (aq) → Fe2O3(s) + SO3(g) - Incorrect reaction. There is no Cu or Cl in product side.
Did you mean-FeSO4 = Fe2O3 + SO2 + SO3 ?
d) NaOH + H2SO4 → BaSO4 + 2HCl - Incorrect reaction.
Did you mean- BaCl2+H2SO4 → BaSO4 + HCl? Then the correct balanced equation is: BaCl2 + H2SO4 → BaSO4 + 2HCl.
(II)
a) Mg(s) + Cl2(g) → 2 MgCl
The reaction type is combination or synthesis
b) TiCl4(l) + 2 Mg(s) → Ti(s) + 2 MgCl2(s)
The reaction type is single displacement
c) This equation is already balanced CaO(s) + SiO2(s) → CaSiO3(s)
The reaction type is combination or synthesis
The reaction type is combination or synthesis
Regards
Topperlearning Team.
Topperlearning Team.
Answered by Hanisha Vyas | 23 May, 2016, 11:46: AM
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