Ca + Br2 = CaBr2 doesn't need to be balanced.
The balanced molecular equation for the reaction between CaBr2 and NaCO3 is: CaBr2 + 2NaCO3 -> CaCO3 + 2NaBr.
To balance the equation, you need 2 molecules of HCN on the reactant side. This will give you the balanced equation: NaCN + H2SO4 -> Na2SO4 + 2HCN.
To balance the equation SO2 + H2S = S + H2O, we need to ensure that there are equal numbers of each type of atom on both sides of the equation. Begin by placing coefficients in front of the compounds to balance the number of sulfur and hydrogen atoms, then balance the oxygen atoms last by adjusting the coefficient for H2O. The balanced equation is SO2 + 2 H2S = 3 S + 2 H2O.
2NH4Cl + Na2CO3 --> 2NH3 + CO2 + H2O + 2NaCl
The equation FeSO4 = Fe2O3 + SO2 + SO3 is not balanced. To balance it, one possible balanced equation could be: 2FeSO4 = Fe2O3 + 2SO2 + 2SO3.
The balanced molecular equation for the reaction between CaBr2 and NaCO3 is: CaBr2 + 2NaCO3 -> CaCO3 + 2NaBr.
Its already balanced.
liho+h2s=
3h2 + n2 ==> 2nh3
It is already balanced
C2h2+3o2=2c02+2h2o+2c
The correct answer is co2+c= 2co
The balanced equation is Ca(OH)2 + H2SO4 → CaSO4 + 2H2O.
If you want to balance the equation, then: 2Zn + O2 --> 2(ZnO)
A quadratic equation.
To balance the equation SO2 + H2S = S + H2O, we need to ensure that there are equal numbers of each type of atom on both sides of the equation. Begin by placing coefficients in front of the compounds to balance the number of sulfur and hydrogen atoms, then balance the oxygen atoms last by adjusting the coefficient for H2O. The balanced equation is SO2 + 2 H2S = 3 S + 2 H2O.
To balance the equation, you need 2 molecules of HCN on the reactant side. This will give you the balanced equation: NaCN + H2SO4 -> Na2SO4 + 2HCN.