Question 4 of 32 What is the most likely way a chemist would be involved in the production of
a computer chip?
O A. By marketing the computer chip to companies that make
electronic devices
B. By building new equipment that can make the parts of a computer
chip smaller
C. By testing the computer chip to make sure it does not have any
defects
D. By developing reactions that are used to make the designschen the
computer chip
SUBMIT

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 !