hello fellow men the challenge has officially begun do not answer this for one month (until november endes). okay well i wish you the best of luck, resist the urge.

As a  member of the female gender that does not take part in this I wish all the men out there good luck

BTW, very of topic but I have answered 70 questions, I have 707 points, like around 90 thanks, BUT YET I ONLY HAVE 1 BRAINLIEST

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 !

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.