It is already balanced, you have the same number of H's and the same number of Cl's in each side of the equation.
C3h8 + 5o2 --> 3co2 + 4h2o
Ba + 2H2O → Ba(OH)2 + H2.
2HCl + Na(2)S-----> H(2)S + 2NaCl
This is a net ionic equation from a double replacement reaction. There should have been 2H+, otherwise the equation doesn't balance. 2H+ + 2CrO42- --> Cr2O72- + H2O
I2 + 10 hno3 = 2 hio3 + 10 no2 + 4 h2o
2H
H
H+ or a proton.
(b+h)(b+h)= b2+2hb+h2.
Plus $85 billion
2Li+2H2O-->2LiOH+H2 A similar reaction occurs with all the other elements in the first column of the periodic table.
I would tell, no reaction will occur the way the question has been asked.