Concept explainers
(a)
Interpretation:
Balanced chemical equation for burning of pentane in oxygen to form carbon dioxide and water has to be written.
Concept Introduction:
Balanced equation
- Every
chemical reaction obliges Law of conservation of mass which states the mass of total amount of the product should be equal to the total mass of the reactants as matter can neither be destroyed nor be created. - Law of definite proportion states that a chemical compound always contains its constituent elements in a fixed ratio by mass. It does neither depend on the source of the preparation nor depend on the method of preparation.
- A chemical equation is balanced based on the above two laws.
(b)
Interpretation:
Balanced chemical equation for reaction of sodium bicarbonate with hydrochloric acid to form carbon dioxide, sodium chloride and water has to be written.
Concept Introduction:
Balanced equation
- Every chemical reaction obliges Law of conservation of mass which states the mass of total amount of the product should be equal to the total mass of the reactants as matter can neither be destroyed nor be created.
- Law of definite proportion states that a chemical compound always contains its constituent elements in a fixed ratio by mass. It does neither depend on the source of the preparation nor depend on the method of preparation.
- A chemical equation is balanced based on the above two laws.
(c)
Interpretation:
Balanced chemical equation for heating lithium in nitrogen atmosphere forming lithium nitride has to be written.
Concept Introduction:
Balanced equation
- Every chemical reaction obliges Law of conservation of mass which states the mass of total amount of the product should be equal to the total mass of the reactants as matter can neither be destroyed nor be created.
- Law of definite proportion states that a chemical compound always contains its constituent elements in a fixed ratio by mass. It does neither depend on the source of the preparation nor depend on the method of preparation.
- A chemical equation is balanced based on the above two laws.
(d)
Interpretation:
Balanced chemical equation for reaction of phosphorus trichloride with water forming phosphorus acid and hydrogen chloride has to be written.
Concept Introduction:
Balanced equation
- Every chemical reaction obliges Law of conservation of mass which states the mass of total amount of the product should be equal to the total mass of the reactants as matter can neither be destroyed nor be created.
- Law of definite proportion states that a chemical compound always contains its constituent elements in a fixed ratio by mass. It does neither depend on the source of the preparation nor depend on the method of preparation.
- A chemical equation is balanced based on the above two laws.
(e)
Interpretation:
Balanced chemical equation for heating copper(II) oxide with ammonia forming copper, nitrogen gas and water has to be written.
Concept Introduction:
Balanced equation
- Every chemical reaction obliges Law of conservation of mass which states the mass of total amount of the product should be equal to the total mass of the reactants as matter can neither be destroyed nor be created.
- Law of definite proportion states that a chemical compound always contains its constituent elements in a fixed ratio by mass. It does neither depend on the source of the preparation nor depend on the method of preparation.
- A chemical equation is balanced based on the above two laws.
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