Assume we have 25 ml of a 2.5 m hcl and a solution of naoh of unkown concentration. the two react via the following equation. hcl(aq) + naoh(aq) -> nacl(aq) + h2o(l) select all that apply: a. hcl is the titrant. b. hcl is the analyte c. naoh is the titrant d. naoh is the analyte my analysis: i would say that c would be the titrant as it is the unknown and the titrant would be hcl as it is the given? is that correct?

Answer is  A - HCl is the titrant and D-NaOH is the analyte.

In a titration process, the solution of unknown concentration considered is the analyte. During titration, a standard solution(titrant) is added to an analyte until the equivalence point is achieved.

So in this case as the concentration of NaOH is not known,NaOH is the analyte.

Titrant is the solution whose concentration  is known to us and is added to an analyte until the equivalence point is reached. In this case since we know the concentration of HCl, HCl is the titrant.

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 !

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).