Imagine you have just baked a pizza in the oven. You've only let it cool for a minute, but you're hungry and you want to take a bite. To minimize your chances of burning your mouth, should you take a bite with a lot of sauce on it or a bite near the crust that contains very little sauce? Explain your answer based on what you have learned about thermal energy and specific heat capacity.

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 !