Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves?
2 answers:
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Answer: a)
b) 1 mole of is produced.
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
The skeletal equation is:
The balanced equation will be:
Thus the coefficients are 2, 3 , 10 , 4 , 3 , 2 and 5.
b) Oxidation:
Reduction:
Net reaction:
When 1 mole of is produced, 1 mole of
is produced.