Scientists have discovered a new planet with many craters. which of the following would be an appropriate hypothesis? the craters on the planet indicate that the planet can support life. the craters on the planet indicate that the planet has an atmosphere. the craters on the planet indicate that the planet cannot support life. the craters on the planet indicate that the planet does not have an atmosphere.

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 !

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