PLS HELP 30 Points!
Does anyone know the answers to the module 2 DBA in chemistry? I’m in 10th grade FLVS. Here’s the virtual DBA slide:

My teacher name is Mrs. santos and my dba is on Monday! Can u guys help me before that happens

my sister is in the 10th grade i think she might know this add me for we can chatt it with her

Explanation:

i think a, hope it .

explanation:

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 !