Which coefficients correctly balance the formula equation cao + h2o ® ca(oh)2?

CaO + H2O → Ca(OH)2

the number of O atom on the left side is 1 and on the right side 2 so,

we put 2H2O instead of H2O 

CaO + 2H2O → Ca(OH)2 

now we have to put 2Ca(OH)2 instead of Ca(OH)2 to make H atoms equal on both sides 4

CaO + 2H2O → 2Ca(OH)2

now we have to put 2CaO instead of CaO to make Ca atoms equal on both sides 2 atoms.

∴ the final balanced equation is:

2CaO + 2H2O → 2 Ca(OH)2

∴ the coefficients are 2 2 2

 

Hi. where is the graph?