What is the molar mass of H2SO4? (Molar mass of H = 1.0079 g/mol; S = 32.065 g/mol; O = 15.999 g/mol)

98.08 g/mol
88.22 g/mol
86.79 g/mol
79.02 g/mol

98.08 is the molar mass of H2SO4

Explanation:

Molar Mass

2*H =  1,0079*2

2*H =                       2.0158

S  =                         32.065

O4 = 15.999 * 4 =   63.996

Molar Mass =          98.0768  

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

it should be all of them because it asks if you included all of those in your answer

explanation: