Question

13 What is the difference between skeletal equation and
balanced chemical equation? Give example. CBSE 2011
14
Complete the missing components/variables given as
reactant and product in the following reactions:
(i) BaCl2 + 'X' - - + +BaSO
(ii) Cu + AgNO3
→ Cu(NO3)2 + 'Y"
(iii) CaCO3 CaO + CO,
4
15 What is redox reaction? Identify the substance
oxidised and the substance reduced in the following
reactions.
(i) CuO + H2O -> Cu + H2O
(ii) MnO2 + 4HCl – MnCl2 + Cl2 + 2H20 CBSE 2007​

Answer 1

Answer:

ans.13 The chemical equation in which number of atoms are not equal on both sides is called a skeletal chemical equation. A balanced chemical equation is that in which the total number of atoms of each element are equal on both sides of the equation is called balanced chemical equation.

ans.14 BaCl2+Na2SO4→2NaCl+BaSO4↓

Cu + 2AgNO3 → Cu(NO3)2 → 2AgCu+2AgNO3→Cu(NO3)2→2Ag

CaCO3 → CaO + CO2CaCO3→CaO+CO2

ans.15 Redox is a type of chemical reaction in which the oxidation states of atoms are changed. Redox reactions are characterized by the actual or formal transfer of electrons between chemical species, most often with one species undergoing oxidation while another species undergoes reduction.

1. Mn is reduced and H is oxisides..

2. Cn is reduced and H is oxisides..

Explanation:

this is your answer...