Why do we need to balance chemical equations?

Rate law cannot be determined form balanced chemical equation if …….. .

What do you understand by a balanced chemical equation ?

Write the balanced chemical equations for developing a black and white photographic film Also, give the reason as to why the solution of sodium thiosulphate on acidification turns milky white and give the balanced chemical equation of this reaction .

We know that balancing of a chemical equation is entirely bases on law of conservation of mass. However the concept of Principle of Atom Conservation (POAC) can also be related to law of consevation of mass in a chemical reaction. So, POAC can also act as a technique for balancing a chemical equation. For example, for a reaction: ABC_(3) rarr AB+C_(2) On applying POAC for A , B and C and related the equations , we get : (n_(ABC_(3)))/(2) =(n_(AB))/(2) =(n_(C_(2)))/(3) ( n_(x) : number of moles of X) Thus , the cofficients of ABC_(3) , AB and C_(2) in the balanced chemical equation will be 2,2 and 3 respectively and the balanced chemical equation can be represented as , 2ABC_(3) rarr 2AB + 3C_(2) Which of the following statements jis correct balanced chemical equation, pA+qB_(2) rarr rA_(2)B_(5)

Why can we not determine the order of a rection by taking into consideration the balanced chemical equation ?

Assertion (A) Order of the reaction can be zero or fractional. Reason (R) We cannot determine order from balanced chemical equation.

In passing chlorine gas through a concentrated solution of alkali we get chloride and chlorate ions Obtain balanced chemical equation for this reaction.

Which of the following statements are applicable to a balanced chemical equation of an elementary reaction ?

Differentiate between a balanced chemical equation and an unbalanced chemical equation.

What is a balanced chemical equation? Why should chemical equations be balanced?