Calculate the actual mass of water that will form if 20.9 of n2H4 reacts with 51.4g of oxygen gas

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

20 drops hope this

football

explanation:

because it is

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.