Fe2(SO4)3 + 6KOH 3K2SO4 + 2Fe(OH)3 During an experiment, the reaction shown above was performed and allowed to go
to completion. If 125 grams of potassium hydroxide were completely reacted, how
many grams of potassium sulfate were produced?

it would be d. henry moseley

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and sorry if i'm late. have a good rest of your day! : d

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.