1 mol CuSO₄·5H₂O ----------- 5 mol H₂O
0,25 mol CuSO₄·5H₂O ---- Xmol H₂O
X = 5×0,25 = 1,25 mol H₂O
Answer:
2H2O2 --> O2 + 2H2O
It is decomposition of hydrogen peroxide into oxygen.
It can also be described a reaction showing how H2O2 acts as a reducing agent
H2O2(aq) ---------> O2(g) + 2H^+ (aq) + 2e E = + 1.77 V
2h2 O2 2h2o
Antoine Lavoisier proved that oxygen is required for material to burn. Without oxygen, the fire goes out which is easily testable.
The statement that is NOT a part
of John Dalton's atomic theory Electrons move in specific orbits around the
nucleus of an atom. The statements ‘All elements are composed of atoms that
cannot be divided’, ‘All atoms of the same element are exactly alike and have
the same mass’ and ‘Every compound is composed of atoms of different elements,
combined in a specific ratio’ are not his theory.