MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Writing and Reading a Chemical Equations

Balancing of ...

Question

Balancing of a chemical equation is based on which of the following law?

A

Boyle's Law

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Law of Constant Proportions

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Avagadro's Law

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Law of Conservation of Mass

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Law of Conservation of Mass
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Assertion :The balancing of chemical equations is based on law of conservation of mass. Reason: Total mass of reactants is equal to total mass of products.

Q. Assertion :The mass and the charge are balanced on both sides of the reaction is a balanced chemical equation. Reason: The chemical reaction should be balanced so that it can follow the law of conservation of mass.

Q. Show that ''Law of conservation of mass is fully justified in a balanced chemical equation''.

Q. We know that balancing of a chemical equation is entirely based on law of conservation of mass. However, the concept of Principle of Atom Conservation (POAC) can also be related to law of conservation of mass in a chemical reaction. So, POAC can also act as a technique for balancing a chemical equation. For example, for a reaction:

A B C_{3} \to A B + C_{2}

.
On applying POAC for A, B & C and relating the 3 equations, we get :

\frac{n_{A B C_{3}}}{2} = \frac{n_{A B}}{2} = \frac{n_{C_{2}}}{3}

(n_{x} :

number of moles of X). Thus, the coefficients of

A B C_{3}, A B & C_{2}

in the balanced chemical equation will be 2, 2 & 3 respectively and the balanced chemical equation can be represented as:

2 A B C_{3} \to 2 A B + 3 C_{2}

.
Now, answer the following question: Which of the following relation is correct regarding the numerical coefficients p,q,r in the balanced chemical equation:

p A + q B_{2} \to r A_{2} B_{5}

A balanced chemical equation obeys the law of conservation of mass.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Balancing of a Chemical Reaction

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Writing and Reading a Chemical Equations

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon