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Observe the two chemical equations given below.
P) Ca(OH) 2 + HNO 3 -----> Ca(NO 3 ) 2 + H 2 O
Q) KBr + AgNO 3 -----> KNO 3 + AgBr
(a) Explain how a balanced equation can be identified.
(b) Which of the two equations is/are NOT balanced? Balance the equation(s) by rewriting.
Answer:
(a) When we balance an equation, we are trying to make sure that both sides have equal no of each atom, so as to conserve mass on both sides .
- Therefore, the number of atoms of each element should be the same on the reactants' side and the products' side.
(b) P
Balanced equation: Ca(OH) 2 + 2 HNO 3 -----> Ca(NO 3 ) 2 + 2 H 2 O
