The second part of the lab procedure focused on particle size and also involved several factors. label each factor listed below as “variable” or “constant.”
amount of water:
reaction rate:
temperature:
initial amount of tablet:
particle size:

•Amount of water: constant

•Reaction rate: variable

•Temperaturas: variable

•Initial amount of tablet: constant

•Particle size: constant

Explanation:

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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.