Learn all you should know about the Atomic Theory, an important topic in chemistry.
CuO + H2SO4 CuSO4 + H2O
Zn + 2HCl ZnCl2 + H2
2KClO3 2KCl + 3O2
From Dalton’s Atomic Theory, atoms cannot be created nor destroyed. So, the number of atoms of every element on either side of the equation is equal.
Balancing of equations
This is the word used to indicate the equalizing of the number of atoms on both sides of the equation.
2Cu + O2 2CuO
2Mg + O2 2MgO