While performing part II of the experiment, after using the pipet to measure out the fluorescein stock solution, the student failed to rinse or dry the pipet before measuring out the hydrochloric acid. Would the required amount of sodium hydroxide in part III be higher, lower, or the same as the predicted 10 mL? Explain

mention the spill to the teacher clean the area and throw the broken pieces away

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 !