Q. 1 A4.7( 15 Votes )
Balancing of equa A. Avogadro number
B. the principle of conservation of momentum
C. conditions for a chemical reaction to take place
D. the law of conservation of mass or matter
Balanced chemical equation: A chemical equation in which the number of atoms of reactants and the number of atoms of products is equal is called a balanced equation.
Every chemical equation should be balanced because:
i) According to the law of conservation of mass, atoms are neither created not destroyed in chemical reactions.
ii) It means the total mass of the products formed in a chemical reaction must be equal to the mass of reactants consumed.
Hence, the correct option is (d)
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