Arrange the coefficients in the schemes of reaction equations: Ca + O2 ⇒ CaO Fe + Cl2 ⇒ FeCl3 CaCO3
| November 30, 2020 | education
Arrange the coefficients in the schemes of reaction equations: Ca + O2 ⇒ CaO Fe + Cl2 ⇒ FeCl3 CaCO3 ⇒ CaO + CO2 Al + HCI ⇒ AlCl3 + H2 N2 + H2 ⇒ NH3 Al + Fe2O3 ⇒ Fe + Al2O3
2Ca + O2 = 2CaO
2Fe + 3Cl2 = 2FeCl3
CaCO3 = CaO + CO2
2Al + 6HCl = 2AlCl3 + 3H2
N2 + 3H2 = 2NH3
2Al + Fe2O3 = Al2O3 + 2Fe
the coefficients are simply to arrange the numbers so that the same number of elements is on the left and right sides
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